TimeField
A time field allows users to enter and edit time values using a keyboard. Each part of a time value is displayed in an individually editable segment.
install | yarn add react-aria-components |
---|---|
version | 1.1.1 |
usage | import {TimeField} from 'react-aria-components' |
Example#
import {TimeField, Label, DateInput, DateSegment} from 'react-aria-components';
<TimeField>
<Label>Event time</Label>
<DateInput>
{segment => <DateSegment segment={segment} />}
</DateInput>
</TimeField>
import {
DateInput,
DateSegment,
Label,
TimeField
} from 'react-aria-components';
<TimeField>
<Label>Event time</Label>
<DateInput>
{(segment) => <DateSegment segment={segment} />}
</DateInput>
</TimeField>
import {
DateInput,
DateSegment,
Label,
TimeField
} from 'react-aria-components';
<TimeField>
<Label>
Event time
</Label>
<DateInput>
{(segment) => (
<DateSegment
segment={segment}
/>
)}
</DateInput>
</TimeField>
Show CSS
@import "@react-aria/example-theme";
.react-aria-TimeField {
color: var(--text-color);
}
.react-aria-DateInput {
display: flex;
padding: 4px;
border: 1px solid var(--border-color);
border-radius: 6px;
background: var(--field-background);
width: fit-content;
min-width: 150px;
white-space: nowrap;
forced-color-adjust: none;
&[data-focus-within] {
outline: 2px solid var(--focus-ring-color);
outline-offset: -1px;
}
}
.react-aria-DateSegment {
padding: 0 2px;
font-variant-numeric: tabular-nums;
text-align: end;
color: var(--text-color);
&[data-type=literal] {
padding: 0;
}
&[data-placeholder] {
color: var(--text-color-placeholder);
font-style: italic;
}
&:focus {
color: var(--highlight-foreground);
background: var(--highlight-background);
outline: none;
border-radius: 4px;
caret-color: transparent;
}
}
@import "@react-aria/example-theme";
.react-aria-TimeField {
color: var(--text-color);
}
.react-aria-DateInput {
display: flex;
padding: 4px;
border: 1px solid var(--border-color);
border-radius: 6px;
background: var(--field-background);
width: fit-content;
min-width: 150px;
white-space: nowrap;
forced-color-adjust: none;
&[data-focus-within] {
outline: 2px solid var(--focus-ring-color);
outline-offset: -1px;
}
}
.react-aria-DateSegment {
padding: 0 2px;
font-variant-numeric: tabular-nums;
text-align: end;
color: var(--text-color);
&[data-type=literal] {
padding: 0;
}
&[data-placeholder] {
color: var(--text-color-placeholder);
font-style: italic;
}
&:focus {
color: var(--highlight-foreground);
background: var(--highlight-background);
outline: none;
border-radius: 4px;
caret-color: transparent;
}
}
@import "@react-aria/example-theme";
.react-aria-TimeField {
color: var(--text-color);
}
.react-aria-DateInput {
display: flex;
padding: 4px;
border: 1px solid var(--border-color);
border-radius: 6px;
background: var(--field-background);
width: fit-content;
min-width: 150px;
white-space: nowrap;
forced-color-adjust: none;
&[data-focus-within] {
outline: 2px solid var(--focus-ring-color);
outline-offset: -1px;
}
}
.react-aria-DateSegment {
padding: 0 2px;
font-variant-numeric: tabular-nums;
text-align: end;
color: var(--text-color);
&[data-type=literal] {
padding: 0;
}
&[data-placeholder] {
color: var(--text-color-placeholder);
font-style: italic;
}
&:focus {
color: var(--highlight-foreground);
background: var(--highlight-background);
outline: none;
border-radius: 4px;
caret-color: transparent;
}
}
Features#
A time field can be built using <input type="time">
, but this is very limited in functionality, lacking in internationalization capabilities, inconsistent between browsers, and difficult to style. TimeField
helps achieve accessible and international time fields that can be styled as needed.
- International – Support for locale-specific formatting, number systems, hour cycles, and right-to-left layout.
- Time zone aware – Times can optionally include a time zone. All modifications follow time zone rules such as daylight saving time.
- Accessible – Each time unit is displayed as an individually focusable and editable segment, which allows users an easy way to edit times using the keyboard, in any format and locale.
- Touch friendly – Time segments are editable using an easy to use numeric keypad, and all interactions are accessible using touch-based screen readers.
- Validation – Integrates with HTML forms, supporting required, minimum and maximum values, custom validation functions, realtime validation, and server-side validation errors.
- Customizable – As with all of React Aria, the DOM structure and styling of all elements can be fully customized.
Read our blog post for more details about the internationalization, accessibility, and user experience features implemented by TimeField
.
Anatomy#
A time field consists of a label, and a group of segments representing each unit of a time (e.g. hours, minutes, and seconds). Each segment is individually focusable and editable by the user, by typing or using the arrow keys to increment and decrement the value. This approach allows values to be formatted and parsed correctly regardless of the locale or time format, and offers an easy and error-free way to edit times using the keyboard.
TimeField
also supports optional description and error message elements, which can be used to provide more context about the field, and any validation messages. These are linked with the input via the aria-describedby
attribute.
import {DateInput, DateSegment, FieldError, Label, Text, TimeField} from 'react-aria-components';
<TimeField>
<Label />
<DateInput>
{(segment) => <DateSegment segment={segment} />}
</DateInput>
<Text slot="description" />
<FieldError />
</TimeField>
import {
DateInput,
DateSegment,
FieldError,
Label,
Text,
TimeField
} from 'react-aria-components';
<TimeField>
<Label />
<DateInput>
{(segment) => <DateSegment segment={segment} />}
</DateInput>
<Text slot="description" />
<FieldError />
</TimeField>
import {
DateInput,
DateSegment,
FieldError,
Label,
Text,
TimeField
} from 'react-aria-components';
<TimeField>
<Label />
<DateInput>
{(segment) => (
<DateSegment
segment={segment}
/>
)}
</DateInput>
<Text slot="description" />
<FieldError />
</TimeField>
If the time field does not have a visible label, an aria-label
or aria-labelledby
prop must be passed instead to identify it to assistive technology.
Note that most of this anatomy is shared with DateField, so you can reuse many components between them if you have both.
Concepts#
TimeField
makes use of the following concepts:
Composed components#
A TimeField
uses the following components, which may also be used standalone or reused in other components.
Starter kits#
To help kick-start your project, we offer starter kits that include example implementations of all React Aria components with various styling solutions. All components are fully styled, including support for dark mode, high contrast mode, and all UI states. Each starter comes with a pre-configured Storybook that you can experiment with, or use as a starting point for your own component library.
Reusable wrappers#
If you will use a TimeField in multiple places in your app, you can wrap all of the pieces into a reusable component. This way, the DOM structure, styling code, and other logic are defined in a single place and reused everywhere to ensure consistency.
This example wraps TimeField
and all of its children together into a single component which accepts a label
prop, which is passed to the right place. It also shows how to use the description
slot to render help text, and FieldError
component to render validation errors.
import type {TimeFieldProps, TimeValue, ValidationResult} from 'react-aria-components';
import {FieldError, Text} from 'react-aria-components';
interface MyTimeFieldProps<T extends TimeValue> extends TimeFieldProps<T> {
label?: string;
description?: string;
errorMessage?: string | ((validation: ValidationResult) => string);
}
function MyTimeField<T extends TimeValue>(
{ label, description, errorMessage, ...props }: MyTimeFieldProps<T>
) {
return (
<TimeField {...props}>
<Label>{label}</Label>
<DateInput>
{(segment) => <DateSegment segment={segment} />}
</DateInput>
{description && <Text slot="description">{description}</Text>}
<FieldError>{errorMessage}</FieldError>
</TimeField>
);
}
<MyTimeField label="Event time" />
import type {
TimeFieldProps,
TimeValue,
ValidationResult
} from 'react-aria-components';
import {FieldError, Text} from 'react-aria-components';
interface MyTimeFieldProps<T extends TimeValue>
extends TimeFieldProps<T> {
label?: string;
description?: string;
errorMessage?:
| string
| ((validation: ValidationResult) => string);
}
function MyTimeField<T extends TimeValue>(
{ label, description, errorMessage, ...props }:
MyTimeFieldProps<T>
) {
return (
<TimeField {...props}>
<Label>{label}</Label>
<DateInput>
{(segment) => <DateSegment segment={segment} />}
</DateInput>
{description && (
<Text slot="description">{description}</Text>
)}
<FieldError>{errorMessage}</FieldError>
</TimeField>
);
}
<MyTimeField label="Event time" />
import type {
TimeFieldProps,
TimeValue,
ValidationResult
} from 'react-aria-components';
import {
FieldError,
Text
} from 'react-aria-components';
interface MyTimeFieldProps<
T extends TimeValue
> extends
TimeFieldProps<T> {
label?: string;
description?: string;
errorMessage?:
| string
| ((
validation:
ValidationResult
) => string);
}
function MyTimeField<
T extends TimeValue
>(
{
label,
description,
errorMessage,
...props
}: MyTimeFieldProps<T>
) {
return (
<TimeField
{...props}
>
<Label>
{label}
</Label>
<DateInput>
{(segment) => (
<DateSegment
segment={segment}
/>
)}
</DateInput>
{description && (
<Text slot="description">
{description}
</Text>
)}
<FieldError>
{errorMessage}
</FieldError>
</TimeField>
);
}
<MyTimeField label="Event time" />
Value#
A TimeField
displays a placeholder by default. An initial, uncontrolled value can be provided to the TimeField
using the defaultValue
prop. Alternatively, a controlled value can be provided using the value
prop.
Time values are provided using objects in the @internationalized/date package. This library handles correct international date and time manipulation across calendars, time zones, and other localization concerns.
TimeField
only supports selecting times, but values with date components are also accepted. By default, TimeField
will emit Time
objects in the onChange
event, but if a CalendarDateTime
or ZonedDateTime
object is passed as the value
or defaultValue
, values of that type will be emitted, changing only the time and preserving the date components.
import {Time} from '@internationalized/date';
function Example() {
let [value, setValue] = React.useState(new Time(11, 45));
return (
<>
<MyTimeField
label="Time (uncontrolled)"
defaultValue={new Time(11, 45)} />
<MyTimeField
label="Time (controlled)"
value={value}
onChange={setValue} />
</>
);
}
import {Time} from '@internationalized/date';
function Example() {
let [value, setValue] = React.useState(new Time(11, 45));
return (
<>
<MyTimeField
label="Time (uncontrolled)"
defaultValue={new Time(11, 45)} />
<MyTimeField
label="Time (controlled)"
value={value}
onChange={setValue} />
</>
);
}
import {Time} from '@internationalized/date';
function Example() {
let [value, setValue] =
React.useState(
new Time(11, 45)
);
return (
<>
<MyTimeField
label="Time (uncontrolled)"
defaultValue={new Time(
11,
45
)}
/>
<MyTimeField
label="Time (controlled)"
value={value}
onChange={setValue}
/>
</>
);
}
Time
values may also be parsed from strings using the parseTime
function. This accepts ISO 8601 formatted time strings such as "04:45:23.123"
. The toString
method of a Time
object can also be used to convert a time object to a string.
Time zones#
TimeField
is time zone aware when a ZonedDateTime
object is provided as the value. In this case, the time zone abbreviation is displayed, and time zone concerns such as daylight saving time are taken into account when the value is manipulated.
In most cases, your data will come from and be sent to a server as an ISO 8601 formatted string. @internationalized/date includes functions for parsing strings in multiple formats into ZonedDateTime
objects. Which format you use will depend on what information you need to store.
parseZonedDateTime
– This function parses a date with an explicit time zone and optional UTC offset attached (e.g."2021-11-07T00:45[America/Los_Angeles]"
or"2021-11-07T00:45-07:00[America/Los_Angeles]"
). This format preserves the maximum amount of information. If the exact local time and time zone that a user selected is important, use this format. Storing the time zone and offset that was selected rather than converting to UTC ensures that the local time is correct regardless of daylight saving rule changes (e.g. if a locale abolishes DST). Examples where this applies include calendar events, reminders, and other times that occur in a particular location.parseAbsolute
– This function parses an absolute date and time that occurs at the same instant at all locations on Earth. It can be represented in UTC (e.g."2021-11-07T07:45:00Z"
), or stored with a particular offset (e.g."2021-11-07T07:45:00-07:00"
). A time zone identifier, e.g.America/Los_Angeles
, must be passed, and the result will be converted into that time zone. Absolute times are the best way to represent events that occurred in the past, or future events where an exact time is needed, regardless of time zone.parseAbsoluteToLocal
– This function parses an absolute date and time into the current user's local time zone. It is a shortcut forparseAbsolute
, and accepts the same formats.
import {parseZonedDateTime} from '@internationalized/date';
<MyTimeField
label="Event time"
defaultValue={parseZonedDateTime('2022-11-07T00:45[America/Los_Angeles]')}
/>
import {parseZonedDateTime} from '@internationalized/date';
<MyTimeField
label="Event time"
defaultValue={parseZonedDateTime(
'2022-11-07T00:45[America/Los_Angeles]'
)}
/>
import {parseZonedDateTime} from '@internationalized/date';
<MyTimeField
label="Event time"
defaultValue={parseZonedDateTime(
'2022-11-07T00:45[America/Los_Angeles]'
)}
/>
TimeField
displays times in the time zone included in the ZonedDateTime
object. The above example is always displayed in Pacific Standard Time because the America/Los_Angeles
time zone identifier is provided. @internationalized/date includes functions for converting dates between time zones, or parsing a date directly into a specific time zone or the user's local time zone, as shown below.
import {parseAbsoluteToLocal} from '@internationalized/date';
<MyTimeField
label="Event time"
defaultValue={parseAbsoluteToLocal('2021-11-07T07:45:00Z')}
/>
import {parseAbsoluteToLocal} from '@internationalized/date';
<MyTimeField
label="Event time"
defaultValue={parseAbsoluteToLocal(
'2021-11-07T07:45:00Z'
)}
/>
import {parseAbsoluteToLocal} from '@internationalized/date';
<MyTimeField
label="Event time"
defaultValue={parseAbsoluteToLocal(
'2021-11-07T07:45:00Z'
)}
/>
Granularity#
The granularity
prop allows you to control the smallest unit that is displayed by TimeField
. By default, times are displayed with "minute"
granularity. More granular time values can be displayed by setting the granularity
prop to "second"
.
<MyTimeField
label="Event time"
granularity="second" defaultValue={parseAbsoluteToLocal('2021-04-07T18:45:22Z')} />
<MyTimeField
label="Event time"
granularity="second" defaultValue={parseAbsoluteToLocal(
'2021-04-07T18:45:22Z'
)}
/>
<MyTimeField
label="Event time"
granularity="second" defaultValue={parseAbsoluteToLocal(
'2021-04-07T18:45:22Z'
)}
/>
HTML forms#
TimeField supports the name
prop for integration with HTML forms. The value will be submitted to the server as an ISO 8601 formatted string, e.g. "08:45:00"
.
<MyTimeField label="Meeting time" name="meetingTime" />
<MyTimeField label="Meeting time" name="meetingTime" />
<MyTimeField
label="Meeting time"
name="meetingTime"
/>
Events#
TimeField
accepts an onChange
prop which is triggered whenever the time is edited by the user. The example below uses onChange
to update a separate element with a formatted version of the date in the user's locale and local time zone. This is done by converting the date to a native JavaScript Date
object to pass to the formatter. TimeField
allows editing the time components while keeping the date fixed.
import {useDateFormatter} from 'react-aria';
function Example() {
let [date, setDate] = React.useState(
parseAbsoluteToLocal('2021-04-07T18:45:22Z')
);
let formatter = useDateFormatter({ dateStyle: 'long', timeStyle: 'long' });
return (
<>
<MyTimeField label="Time" value={date} onChange={setDate} />
<p>
Selected date and time:{' '}
{(date?.toDate && formatter.format(date.toDate())) ||
(date && date.toString()) || '--'}
</p>
</>
);
}
import {useDateFormatter} from 'react-aria';
function Example() {
let [date, setDate] = React.useState(
parseAbsoluteToLocal('2021-04-07T18:45:22Z')
);
let formatter = useDateFormatter({
dateStyle: 'long',
timeStyle: 'long'
});
return (
<>
<MyTimeField
label="Time"
value={date}
onChange={setDate}
/>
<p>
Selected date and time:{' '}
{(date?.toDate &&
formatter.format(date.toDate())) ||
(date && date.toString()) || '--'}
</p>
</>
);
}
import {useDateFormatter} from 'react-aria';
function Example() {
let [date, setDate] =
React.useState(
parseAbsoluteToLocal(
'2021-04-07T18:45:22Z'
)
);
let formatter =
useDateFormatter({
dateStyle: 'long',
timeStyle: 'long'
});
return (
<>
<MyTimeField
label="Time"
value={date}
onChange={setDate}
/>
<p>
Selected date and
time:{' '}
{(date?.toDate &&
formatter
.format(
date
.toDate()
)) ||
(date &&
date
.toString()) ||
'--'}
</p>
</>
);
}
Validation#
TimeField supports the isRequired
prop to ensure the user enters a value, as well as minimum and maximum values, and custom client and server-side validation. It can also be integrated with other form libraries. See the Forms guide to learn more.
To display validation errors, add a <FieldError>
element as a child of the TimeField. This allows you to render error messages from all of the above sources with consistent custom styles.
import {Form, FieldError, Button} from 'react-aria-components';
<Form>
<TimeField name="time" isRequired> <Label>Meeting time</Label>
<DateInput>
{segment => <DateSegment segment={segment} />}
</DateInput>
<FieldError /> </TimeField>
<Button type="submit">Submit</Button>
</Form>
import {
Button,
FieldError,
Form
} from 'react-aria-components';
<Form>
<TimeField name="time" isRequired> <Label>Meeting time</Label>
<DateInput>
{(segment) => <DateSegment segment={segment} />}
</DateInput>
<FieldError /> </TimeField>
<Button type="submit">Submit</Button>
</Form>
import {
Button,
FieldError,
Form
} from 'react-aria-components';
<Form>
<TimeField
name="time"
isRequired
> <Label>
Meeting time
</Label>
<DateInput>
{(segment) => (
<DateSegment
segment={segment}
/>
)}
</DateInput>
<FieldError /> </TimeField>
<Button type="submit">
Submit
</Button>
</Form>
Show CSS
.react-aria-DateSegment {
&[data-invalid] {
color: var(--invalid-color);
&:focus {
background: var(--highlight-background-invalid);
color: var(--highlight-foreground);
}
}
}
.react-aria-TimeField {
.react-aria-FieldError {
font-size: 12px;
color: var(--invalid-color);
}
}
.react-aria-DateSegment {
&[data-invalid] {
color: var(--invalid-color);
&:focus {
background: var(--highlight-background-invalid);
color: var(--highlight-foreground);
}
}
}
.react-aria-TimeField {
.react-aria-FieldError {
font-size: 12px;
color: var(--invalid-color);
}
}
.react-aria-DateSegment {
&[data-invalid] {
color: var(--invalid-color);
&:focus {
background: var(--highlight-background-invalid);
color: var(--highlight-foreground);
}
}
}
.react-aria-TimeField {
.react-aria-FieldError {
font-size: 12px;
color: var(--invalid-color);
}
}
By default, FieldError
displays default validation messages provided by the browser. See Customizing error messages in the Forms guide to learn how to provide your own custom errors.
Minimum and maximum values#
The minValue
and maxValue
props can also be used to ensure the value is within a specific range. This example only accepts times between 9 AM and 5 PM.
<Form>
<MyTimeField
label="Meeting time"
minValue={new Time(9)}
maxValue={new Time(17)} defaultValue={new Time(8)} />
<Button type="submit">Submit</Button>
</Form>
<Form>
<MyTimeField
label="Meeting time"
minValue={new Time(9)}
maxValue={new Time(17)} defaultValue={new Time(8)} />
<Button type="submit">Submit</Button>
</Form>
<Form>
<MyTimeField
label="Meeting time"
minValue={new Time(
9
)}
maxValue={new Time(
17
)} defaultValue={new Time(
8
)}
/>
<Button type="submit">
Submit
</Button>
</Form>
Custom validation#
The validate
function can be used to perform custom validation logic. It receives the current field value, and should return a string or array of strings representing one or more error messages if the value is invalid.
This example validates that the selected time is on a 15 minute increment.
<Form>
<MyTimeField
label="Meeting time"
validate={(time) =>
time?.minute % 15 !== 0 ? 'Meetings start every 15 minutes.' : null} defaultValue={new Time(9, 25)}
/>
<Button type="submit">Submit</Button>
</Form>
<Form>
<MyTimeField
label="Meeting time"
validate={(time) =>
time?.minute % 15 !== 0
? 'Meetings start every 15 minutes.'
: null} defaultValue={new Time(9, 25)}
/>
<Button type="submit">Submit</Button>
</Form>
<Form>
<MyTimeField
label="Meeting time"
validate={(time) =>
time?.minute %
15 !== 0
? 'Meetings start every 15 minutes.'
: null} defaultValue={new Time(
9,
25
)}
/>
<Button type="submit">
Submit
</Button>
</Form>
Description#
The description
slot can be used to associate additional help text with a date field.
<TimeField>
<Label>Appointment time</Label>
<DateInput>
{segment => <DateSegment segment={segment} />}
</DateInput>
<Text slot="description">Please select a time between 9 AM and 5 PM.</Text></TimeField>
<TimeField>
<Label>Appointment time</Label>
<DateInput>
{(segment) => <DateSegment segment={segment} />}
</DateInput>
<Text slot="description">
Please select a time between 9 AM and 5 PM.
</Text></TimeField>
<TimeField>
<Label>
Appointment time
</Label>
<DateInput>
{(segment) => (
<DateSegment
segment={segment}
/>
)}
</DateInput>
<Text slot="description">
Please select a
time between 9 AM
and 5 PM.
</Text></TimeField>
Show CSS
.react-aria-TimeField {
[slot=description] {
font-size: 12px;
}
}
.react-aria-TimeField {
[slot=description] {
font-size: 12px;
}
}
.react-aria-TimeField {
[slot=description] {
font-size: 12px;
}
}
Format options#
Placeholder value#
When no value is set, a placeholder is shown. The format of the placeholder is influenced by the granularity
and placeholderValue
props. placeholderValue
also controls the default values of each segment when the user first interacts with them, e.g. using the up and down arrow keys. By default, the placeholderValue
is midnight, but you can set it to a more appropriate value if needed.
<MyTimeField label="Meeting time" placeholderValue={new Time(9)} />
<MyTimeField
label="Meeting time"
placeholderValue={new Time(9)}
/>
<MyTimeField
label="Meeting time"
placeholderValue={new Time(
9
)}
/>
Hide time zone#
When a ZonedDateTime
object is provided as the value to TimeField
, the time zone abbreviation is displayed by default. However, if this is displayed elsewhere or implicit based on the usecase, it can be hidden using the hideTimeZone
option.
<MyTimeField
label="Appointment time"
defaultValue={parseZonedDateTime('2022-11-07T10:45[America/Los_Angeles]')}
hideTimeZone />
<MyTimeField
label="Appointment time"
defaultValue={parseZonedDateTime(
'2022-11-07T10:45[America/Los_Angeles]'
)}
hideTimeZone
/>
<MyTimeField
label="Appointment time"
defaultValue={parseZonedDateTime(
'2022-11-07T10:45[America/Los_Angeles]'
)}
hideTimeZone
/>
Hour cycle#
By default, TimeField
displays times in either 12 or 24 hour hour format depending on the user's locale. However, this can be overridden using the hourCycle
prop if needed for a specific usecase. This example forces TimeField
to use 24-hour time, regardless of the locale.
<MyTimeField
label="Appointment time"
hourCycle={24} />
<MyTimeField
label="Appointment time"
hourCycle={24} />
<MyTimeField
label="Appointment time"
hourCycle={24}
/>
Props#
TimeField#
Name | Type | Default | Description |
hourCycle | 12 | 24 | — | Whether to display the time in 12 or 24 hour format. By default, this is determined by the user's locale. |
granularity | 'hour'
| 'minute'
| 'second' | 'minute' | Determines the smallest unit that is displayed in the time picker. |
hideTimeZone | boolean | — | Whether to hide the time zone abbreviation. |
shouldForceLeadingZeros | boolean | — | Whether to always show leading zeros in the hour field. By default, this is determined by the user's locale. |
placeholderValue | TimeValue | — | A placeholder time that influences the format of the placeholder shown when no value is selected. Defaults to 12:00 AM or 00:00 depending on the hour cycle. |
minValue | TimeValue | — | The minimum allowed time that a user may select. |
maxValue | TimeValue | — | The maximum allowed time that a user may select. |
isDisabled | boolean | — | Whether the input is disabled. |
isReadOnly | boolean | — | Whether the input can be selected but not changed by the user. |
isRequired | boolean | — | Whether user input is required on the input before form submission. |
isInvalid | boolean | — | Whether the input value is invalid. |
validate | (
(value: MappedTimeValue<TimeValue>
)) => ValidationError
| true
| null
| undefined | — | A function that returns an error message if a given value is invalid.
Validation errors are displayed to the user when the form is submitted
if |
autoFocus | boolean | — | Whether the element should receive focus on render. |
value | TimeValue | null | — | The current value (controlled). |
defaultValue | TimeValue | null | — | The default value (uncontrolled). |
name | string | — | The name of the input element, used when submitting an HTML form. See MDN. |
validationBehavior | 'native' | 'aria' | 'native' | Whether to use native HTML form validation to prevent form submission when the value is missing or invalid, or mark the field as required or invalid via ARIA. |
children | ReactNode | (
(values: DateFieldRenderProps
)) => ReactNode | — | The children of the component. A function may be provided to alter the children based on component state. |
className | string | (
(values: DateFieldRenderProps
)) => string | — | The CSS className for the element. A function may be provided to compute the class based on component state. |
style | CSSProperties | (
(values: DateFieldRenderProps
)) => CSSProperties | — | The inline style for the element. A function may be provided to compute the style based on component state. |
Events
Name | Type | Description |
onFocus | (
(e: FocusEvent<Target>
)) => void | Handler that is called when the element receives focus. |
onBlur | (
(e: FocusEvent<Target>
)) => void | Handler that is called when the element loses focus. |
onFocusChange | (
(isFocused: boolean
)) => void | Handler that is called when the element's focus status changes. |
onKeyDown | (
(e: KeyboardEvent
)) => void | Handler that is called when a key is pressed. |
onKeyUp | (
(e: KeyboardEvent
)) => void | Handler that is called when a key is released. |
onChange | (
(value: MappedTimeValue<TimeValue>
)) => void | Handler that is called when the value changes. |
Layout
Name | Type | Description |
slot | string | null | A slot name for the component. Slots allow the component to receive props from a parent component.
An explicit |
Accessibility
Name | Type | Description |
id | string | The element's unique identifier. See MDN. |
aria-label | string | Defines a string value that labels the current element. |
aria-labelledby | string | Identifies the element (or elements) that labels the current element. |
aria-describedby | string | Identifies the element (or elements) that describes the object. |
aria-details | string | Identifies the element (or elements) that provide a detailed, extended description for the object. |
Label#
A <Label>
accepts all HTML attributes.
DateInput#
The <DateInput>
component renders a group of date segments. It accepts a function as its children
, which is called to render a <DateSegment>
for each segment.
Show props
Name | Type | Description |
children | (
(segment: DateSegment
)) => ReactElement | |
className | string | (
(values: DateInputRenderProps
)) => string | The CSS className for the element. A function may be provided to compute the class based on component state. |
style | CSSProperties | (
(values: DateInputRenderProps
)) => CSSProperties | The inline style for the element. A function may be provided to compute the style based on component state. |
DateSegment#
The <DateSegment>
component renders an individual segment.
Show props
Name | Type | Description |
segment | DateSegment | |
children | ReactNode | (
(values: DateSegmentRenderProps
)) => ReactNode | The children of the component. A function may be provided to alter the children based on component state. |
className | string | (
(values: DateSegmentRenderProps
)) => string | The CSS className for the element. A function may be provided to compute the class based on component state. |
style | CSSProperties | (
(values: DateSegmentRenderProps
)) => CSSProperties | The inline style for the element. A function may be provided to compute the style based on component state. |
Events
Name | Type | Description |
onHoverStart | (
(e: HoverEvent
)) => void | Handler that is called when a hover interaction starts. |
onHoverEnd | (
(e: HoverEvent
)) => void | Handler that is called when a hover interaction ends. |
onHoverChange | (
(isHovering: boolean
)) => void | Handler that is called when the hover state changes. |
FieldError#
A <FieldError>
displays validation errors.
Show props
Name | Type | Description |
children | ReactNode | (
(values: FieldErrorRenderProps
)) => ReactNode | The children of the component. A function may be provided to alter the children based on component state. |
className | string | (
(values: FieldErrorRenderProps
)) => string | The CSS className for the element. A function may be provided to compute the class based on component state. |
style | CSSProperties | (
(values: FieldErrorRenderProps
)) => CSSProperties | The inline style for the element. A function may be provided to compute the style based on component state. |
Styling#
React Aria components can be styled in many ways, including using CSS classes, inline styles, utility classes (e.g. Tailwind), CSS-in-JS (e.g. Styled Components), etc. By default, all components include a builtin className
attribute which can be targeted using CSS selectors. These follow the react-aria-ComponentName
naming convention.
.react-aria-TimeField {
/* ... */
}
.react-aria-TimeField {
/* ... */
}
.react-aria-TimeField {
/* ... */
}
A custom className
can also be specified on any component. This overrides the default className
provided by React Aria with your own.
<DateInput className="my-date-input">
{/* ... */}
</DateInput>
<DateInput className="my-date-input">
{/* ... */}
</DateInput>
<DateInput className="my-date-input">
{/* ... */}
</DateInput>
In addition, some components support multiple UI states (e.g. focused, placeholder, readonly, etc.). React Aria components expose states using data attributes, which you can target in CSS selectors. For example:
.react-aria-DateSegment[data-placeholder] {
/* ... */
}
.react-aria-DateSegment[data-readonly] {
/* ... */
}
.react-aria-DateSegment[data-placeholder] {
/* ... */
}
.react-aria-DateSegment[data-readonly] {
/* ... */
}
.react-aria-DateSegment[data-placeholder] {
/* ... */
}
.react-aria-DateSegment[data-readonly] {
/* ... */
}
The className
and style
props also accept functions which receive states for styling. This lets you dynamically determine the classes or styles to apply, which is useful when using utility CSS libraries like Tailwind.
<DateSegment
className={({ isPlaceholder }) =>
isPlaceholder ? 'bg-gray-300' : 'bg-gray-600'}
/>
<DateSegment
className={({ isPlaceholder }) =>
isPlaceholder ? 'bg-gray-300' : 'bg-gray-600'}
/>
<DateSegment
className={(
{ isPlaceholder }
) =>
isPlaceholder
? 'bg-gray-300'
: 'bg-gray-600'}
/>
Render props may also be used as children to alter what elements are rendered based on the current state. For example, you could render the placeholder as a separate element to always reserve space for it.
<DateSegment>
{({ text, placeholder, isPlaceholder }) => (
<>
<span style={{ visibility: isPlaceholder ? 'visible' : 'hidden' }}>
{placeholder}
</span>
{isPlaceholder ? '' : text}
</>
)}
</DateSegment>
<DateSegment>
{({ text, placeholder, isPlaceholder }) => (
<>
<span
style={{
visibility: isPlaceholder ? 'visible' : 'hidden'
}}
>
{placeholder}
</span>
{isPlaceholder ? '' : text}
</>
)}
</DateSegment>
<DateSegment>
{(
{
text,
placeholder,
isPlaceholder
}
) => (
<>
<span
style={{
visibility:
isPlaceholder
? 'visible'
: 'hidden'
}}
>
{placeholder}
</span>
{isPlaceholder
? ''
: text}
</>
)}
</DateSegment>
The states, selectors, and render props for each component used in a TimeField
are documented below.
TimeField#
A TimeField
can be targeted with the .react-aria-TimeField
CSS selector, or by overriding with a custom className
. It supports the following states and render props:
Name | CSS Selector | Description |
state | — | State of the date field. |
isInvalid | [data-invalid] | Whether the date field is invalid. |
isDisabled | [data-disabled] | Whether the date field is disabled. |
Label#
A Label
can be targeted with the .react-aria-Label
CSS selector, or by overriding with a custom className
.
DateInput#
A DateInput
can be targeted with the .react-aria-DateInput
CSS selector, or by overriding with a custom className
. It supports the following states:
Name | CSS Selector | Description |
isHovered | [data-hovered] | Whether the date input is currently hovered with a mouse. |
isFocusWithin | [data-focus-within] | Whether an element within the date input is focused, either via a mouse or keyboard. |
isFocusVisible | [data-focus-visible] | Whether an element within the date input is keyboard focused. |
isDisabled | [data-disabled] | Whether the date input is disabled. |
isInvalid | [data-invalid] | Whether the date input is invalid. |
DateSegment#
A DateSegment
can be targeted with the .react-aria-DateSegment
CSS selector, or by overriding with a custom className
. It supports the following states and render props:
Name | CSS Selector | Description |
isHovered | [data-hovered] | Whether the segment is currently hovered with a mouse. |
isFocused | [data-focused] | Whether the segment is focused, either via a mouse or keyboard. |
isFocusVisible | [data-focus-visible] | Whether the segment is keyboard focused. |
isPlaceholder | [data-placeholder] | Whether the value is a placeholder. |
isReadOnly | [data-readonly] | Whether the segment is read only. |
isDisabled | [data-disabled] | Whether the date field is disabled. |
isInvalid | [data-invalid] | Whether the date field is in an invalid state. |
type | [data-type="..."] | The type of segment. Values include literal , year , month , day , etc. |
text | — | The formatted text for the segment. |
placeholder | — | A placeholder string for the segment. |
FieldError#
A FieldError
can be targeted with the .react-aria-FieldError
CSS selector, or by overriding with a custom className
. It supports the following render props:
Name | Description |
isInvalid | Whether the input value is invalid. |
validationErrors | The current error messages for the input if it is invalid, otherwise an empty array. |
validationDetails | The native validation details for the input. |
Advanced customization#
Composition#
If you need to customize one of the components within a TimeField
, such as Label
or DateSegment
, in many cases you can create a wrapper component. This lets you customize the props passed to the component.
function MyDateSegment(props) {
return <MyDateSegment {...props} className="my-date-segment" />
}
function MyDateSegment(props) {
return (
<MyDateSegment {...props} className="my-date-segment" />
);
}
function MyDateSegment(
props
) {
return (
<MyDateSegment
{...props}
className="my-date-segment"
/>
);
}
Contexts#
All React Aria Components export a corresponding context that can be used to send props to them from a parent element. This enables you to build your own compositional APIs similar to those found in React Aria Components itself. You can send any prop or ref via context that you could pass to the corresponding component. The local props and ref on the component are merged with the ones passed via context, with the local props taking precedence (following the rules documented in mergeProps).
Component | Context | Props | Ref |
TimeField | TimeFieldContext | TimeFieldProps | HTMLDivElement |
This example shows a FieldGroup
component that renders a group of time fields with a title and optional error message. It uses the useId hook to generate a unique id for the error message. All of the child TimeFields are marked invalid and associated with the error message via the aria-describedby
attribute passed to the TimeFieldContext
provider.
import {TimeFieldContext} from 'react-aria-components';
import {useId} from 'react-aria';
interface FieldGroupProps {
title?: string;
children?: React.ReactNode;
errorMessage?: string;
}
function FieldGroup({ title, children, errorMessage }: FieldGroupProps) {
let errorId = useId();
return (
<fieldset>
<legend>{title}</legend>
<TimeFieldContext.Provider
value={{
isInvalid: !!errorMessage,
'aria-describedby': errorMessage ? errorId : undefined
}}
> {children}
</TimeFieldContext.Provider>
{errorMessage && (
<small id={errorId} className="invalid">{errorMessage}</small>
)}
</fieldset>
);
}
<FieldGroup
title="Schedule meeting time"
errorMessage="End time must be after start time."
>
<MyTimeField label="Start" defaultValue={new Time(13)} />
<MyTimeField label="End" defaultValue={new Time(9)} />
</FieldGroup>
import {TimeFieldContext} from 'react-aria-components';
import {useId} from 'react-aria';
interface FieldGroupProps {
title?: string;
children?: React.ReactNode;
errorMessage?: string;
}
function FieldGroup(
{ title, children, errorMessage }: FieldGroupProps
) {
let errorId = useId();
return (
<fieldset>
<legend>{title}</legend>
<TimeFieldContext.Provider
value={{
isInvalid: !!errorMessage,
'aria-describedby': errorMessage
? errorId
: undefined
}}
> {children}
</TimeFieldContext.Provider>
{errorMessage && (
<small id={errorId} className="invalid">
{errorMessage}
</small>
)}
</fieldset>
);
}
<FieldGroup
title="Schedule meeting time"
errorMessage="End time must be after start time."
>
<MyTimeField
label="Start"
defaultValue={new Time(13)}
/>
<MyTimeField label="End" defaultValue={new Time(9)} />
</FieldGroup>
import {TimeFieldContext} from 'react-aria-components';
import {useId} from 'react-aria';
interface FieldGroupProps {
title?: string;
children?:
React.ReactNode;
errorMessage?: string;
}
function FieldGroup(
{
title,
children,
errorMessage
}: FieldGroupProps
) {
let errorId = useId();
return (
<fieldset>
<legend>
{title}
</legend>
<TimeFieldContext.Provider
value={{
isInvalid:
!!errorMessage,
'aria-describedby':
errorMessage
? errorId
: undefined
}}
> {children}
</TimeFieldContext.Provider>
{errorMessage && (
<small
id={errorId}
className="invalid"
>
{errorMessage}
</small>
)}
</fieldset>
);
}
<FieldGroup
title="Schedule meeting time"
errorMessage="End time must be after start time."
>
<MyTimeField
label="Start"
defaultValue={new Time(
13
)}
/>
<MyTimeField
label="End"
defaultValue={new Time(
9
)}
/>
</FieldGroup>
Show CSS
fieldset {
padding: 1.5em;
width: fit-content;
}
.invalid {
color: var(--invalid-color);
margin-top: 1em;
display: block;
}
fieldset {
padding: 1.5em;
width: fit-content;
}
.invalid {
color: var(--invalid-color);
margin-top: 1em;
display: block;
}
fieldset {
padding: 1.5em;
width: fit-content;
}
.invalid {
color: var(--invalid-color);
margin-top: 1em;
display: block;
}
Custom children#
TimeField passes props to its child components, such as the label, via their associated contexts. These contexts are exported so you can also consume them in your own custom components. This enables you to reuse existing components from your app or component library together with React Aria Components.
Component | Context | Props | Ref |
Label | LabelContext | LabelProps | HTMLLabelElement |
Text | TextContext | TextProps | HTMLElement |
This example consumes from LabelContext
in an existing styled label component to make it compatible with React Aria Components. The useContextProps
hook merges the local props and ref with the ones provided via context by TimeField.
import type {LabelProps} from 'react-aria-components';
import {LabelContext, useContextProps} from 'react-aria-components';
const MyCustomLabel = React.forwardRef(
(props: LabelProps, ref: React.ForwardedRef<HTMLLabelElement>) => {
// Merge the local props and ref with the ones provided via context.
[props, ref] = useContextProps(props, ref, LabelContext);
// ... your existing Label component
return <label {...props} ref={ref} />;
}
);
import type {LabelProps} from 'react-aria-components';
import {
LabelContext,
useContextProps
} from 'react-aria-components';
const MyCustomLabel = React.forwardRef(
(
props: LabelProps,
ref: React.ForwardedRef<HTMLLabelElement>
) => {
// Merge the local props and ref with the ones provided via context.
[props, ref] = useContextProps(
props,
ref,
LabelContext
);
// ... your existing Label component
return <label {...props} ref={ref} />;
}
);
import type {LabelProps} from 'react-aria-components';
import {
LabelContext,
useContextProps
} from 'react-aria-components';
const MyCustomLabel =
React.forwardRef(
(
props: LabelProps,
ref:
React.ForwardedRef<
HTMLLabelElement
>
) => {
// Merge the local props and ref with the ones provided via context.
[props, ref] =
useContextProps(
props,
ref,
LabelContext
);
// ... your existing Label component
return (
<label
{...props}
ref={ref}
/>
);
}
);
Now you can use MyCustomLabel
within a TimeField
, in place of the builtin React Aria Components Label
.
<TimeField>
<MyCustomLabel>Name</MyCustomLabel> <DateInput>
{segment => <DateSegment segment={segment} />}
</DateInput>
</TimeField>
<TimeField>
<MyCustomLabel>Name</MyCustomLabel> <DateInput>
{segment => <DateSegment segment={segment} />}
</DateInput>
</TimeField>
<TimeField>
<MyCustomLabel>
Name
</MyCustomLabel> <DateInput>
{(segment) => (
<DateSegment
segment={segment}
/>
)}
</DateInput>
</TimeField>
State#
TimeField provides a TimeFieldState
object to its children via TimeFieldStateContext
. This can be used to access and manipulate the time field's state.
This example shows a TimeZoneName
component that can be placed within a TimeField
to display the full time zone name.
import {TimeFieldStateContext} from 'react-aria-components';
import {useDateFormatter} from 'react-aria';
function TimeZoneName() {
let state = React.useContext(TimeFieldStateContext)!; if ('timeZone' in state.value) {
let formatter = useDateFormatter({
timeZoneName: 'long',
timeZone: state.value.timeZone
});
let timeZone = formatter
.formatToParts(state.value.toDate())
.find((p) => p.type === 'timeZoneName').value;
return <small>{timeZone}</small>;
}
return null;
}
<TimeField value={parseAbsoluteToLocal('2021-04-07T18:45:22Z')}>
<Label>Time</Label>
<DateInput>
{(segment) => <DateSegment segment={segment} />}
</DateInput>
<TimeZoneName /></TimeField>
import {TimeFieldStateContext} from 'react-aria-components';
import {useDateFormatter} from 'react-aria';
function TimeZoneName() {
let state = React.useContext(TimeFieldStateContext)!; if ('timeZone' in state.value) {
let formatter = useDateFormatter({
timeZoneName: 'long',
timeZone: state.value.timeZone
});
let timeZone = formatter
.formatToParts(state.value.toDate())
.find((p) => p.type === 'timeZoneName').value;
return <small>{timeZone}</small>;
}
return null;
}
<TimeField
value={parseAbsoluteToLocal('2021-04-07T18:45:22Z')}
>
<Label>Time</Label>
<DateInput>
{(segment) => <DateSegment segment={segment} />}
</DateInput>
<TimeZoneName /></TimeField>
import {TimeFieldStateContext} from 'react-aria-components';
import {useDateFormatter} from 'react-aria';
function TimeZoneName() {
let state = React
.useContext(
TimeFieldStateContext
)!; if (
'timeZone' in
state.value
) {
let formatter =
useDateFormatter({
timeZoneName:
'long',
timeZone:
state.value
.timeZone
});
let timeZone =
formatter
.formatToParts(
state.value
.toDate()
)
.find((p) =>
p.type ===
'timeZoneName'
).value;
return (
<small>
{timeZone}
</small>
);
}
return null;
}
<TimeField
value={parseAbsoluteToLocal(
'2021-04-07T18:45:22Z'
)}
>
<Label>Time</Label>
<DateInput>
{(segment) => (
<DateSegment
segment={segment}
/>
)}
</DateInput>
<TimeZoneName /></TimeField>
Hooks#
If you need to customize things even further, such as accessing internal state or customizing DOM structure, you can drop down to the lower level Hook-based API. See useTimeField for more details.