useDatePicker
Provides the behavior and accessibility implementation for a date picker component. A date picker combines a DateField and a Calendar popover to allow users to enter or select a date and time value.
install | yarn add @react-aria/datepicker |
---|---|
version | 3.0.0-rc.0 |
usage | import {useDatePicker} from '@react-aria/datepicker' |
API#
useDatePicker<T extends DateValue>(
props: AriaDatePickerProps<T>,
state: DatePickerState,
ref: RefObject<HTMLElement>
): DatePickerAria
Features#
A date picker can be built using <input type="date">
, but this is very limited in functionality, lacking in internationalization capabilities, inconsistent between browsers, and difficult to style. useDatePicker
helps achieve accessible and international date and time pickers that can be styled as needed.
- Dates and times – Support for dates and times with configurable granularity.
- International – Support for 13 calendar systems used around the world, including Gregorian, Buddhist, Islamic, Persian, and more. Locale-specific formatting, number systems, hour cycles, and right-to-left support are available as well.
- Time zone aware – Dates and times can optionally include a time zone. All modifications follow time zone rules such as daylight saving time.
- Accessible – Each date and time unit is displayed as an individually focusable and editable segment, which allows users an easy way to edit dates using the keyboard, in any date format and locale. Users can also open a calendar popover to select dates in a standard month grid. Localized screen reader messages are included to announce when the selection and visible date range change.
- Touch friendly – Date segments are editable using an easy to use numeric keypad, and all interactions are accessible using touch-based screen readers.
- Customizable – As with all of React Aria, the DOM structure and styling of all elements can be fully customized.
Anatomy#
A date picker consists of a label, and group containing a date field and a button. Clicking the button opens a popup containing a calendar. The date field includes segments representing each unit of a date and time (e.g. years, months, days, etc.), each of which is individually focusable and editable using the keyboard. The calendar popup offers a more visual way of choosing a date.
useDatePicker
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.
useDatePicker
returns props that you should spread onto the appropriate elements:
Name | Type | Description |
labelProps | HTMLAttributes<HTMLElement> | Props for the date picker's visible label element, if any. |
groupProps | HTMLAttributes<HTMLElement> | Props for the grouping element containing the date field and button. |
fieldProps | AriaDatePickerProps<DateValue> | Props for the date field. |
buttonProps | AriaButtonProps | Props for the popover trigger button. |
descriptionProps | HTMLAttributes<HTMLElement> | Props for the description element, if any. |
errorMessageProps | HTMLAttributes<HTMLElement> | Props for the error message element, if any. |
dialogProps | AriaDialogProps | Props for the popover dialog. |
calendarProps | CalendarProps<DateValue> | Props for the calendar within the popover dialog. |
State is managed by the useDatePickerState
hook from @react-stately/datepicker
. The state object should be passed as an argument to useDatePicker
.
If the date picker does not have a visible label, an aria-label
or aria-labelledby
prop must be passed instead to
identify it to assistive technology.
Date and time values#
Dates and times are represented in many different ways by cultures around the world. This includes differences in calendar systems, time zones, daylight saving time rules, date and time formatting, weekday and weekend rules, and much more. When building applications that support users around the world, it is important to handle these aspects correctly for each locale.
useDatePicker
uses the @internationalized/date library to represent dates and times. This package provides a library of objects and functions to perform date and time related manipulation, queries, and conversions that work across locales and calendars. Date and time objects can be converted to and from native JavaScript Date
objects or ISO 8601 strings. See the documentation, or the examples below for more details.
Example#
A DatePicker
composes several other components to produce a composite element that can be used to enter dates with a keyboard, or select them on a calendar. The DateField
, Popover
, Calendar
, and Button
components used in this example are independent and can be used separately from the DatePicker
. The code is available below, and documentation is available on the corresponding pages.
import {useDatePickerState} from '@react-stately/datepicker';
import {useDatePicker} from '@react-aria/datepicker';
// Reuse the DateField, Popover, Calendar, and Button from your component library. See below for details.
import {Button, Calendar, DateField, Popover} from 'your-component-library';
function DatePicker(props) {
let state = useDatePickerState(props);
let ref = React.useRef();
let {
groupProps,
labelProps,
fieldProps,
buttonProps,
dialogProps,
calendarProps
} = useDatePicker(props, state, ref);
return (
<div style={{ position: 'relative' }}>
<span {...labelProps}>{props.label}</span>
<div {...groupProps} ref={ref} style={{ display: 'flex' }}>
<DateField {...fieldProps} />
<Button {...buttonProps}>🗓</Button>
</div>
{state.isOpen &&
(
<Popover
{...dialogProps}
isOpen={state.isOpen}
onClose={() => state.setOpen(false)}
>
<Calendar {...calendarProps} />
</Popover>
)}
</div>
);
}
<DatePicker label="Event date" />
import {useDatePickerState} from '@react-stately/datepicker';
import {useDatePicker} from '@react-aria/datepicker';
// Reuse the DateField, Popover, Calendar, and Button from your component library. See below for details.
import {
Button,
Calendar,
DateField,
Popover
} from 'your-component-library';
function DatePicker(props) {
let state = useDatePickerState(props);
let ref = React.useRef();
let {
groupProps,
labelProps,
fieldProps,
buttonProps,
dialogProps,
calendarProps
} = useDatePicker(props, state, ref);
return (
<div style={{ position: 'relative' }}>
<span {...labelProps}>{props.label}</span>
<div
{...groupProps}
ref={ref}
style={{ display: 'flex' }}
>
<DateField {...fieldProps} />
<Button {...buttonProps}>🗓</Button>
</div>
{state.isOpen &&
(
<Popover
{...dialogProps}
isOpen={state.isOpen}
onClose={() => state.setOpen(false)}
>
<Calendar {...calendarProps} />
</Popover>
)}
</div>
);
}
<DatePicker label="Event date" />
import {useDatePickerState} from '@react-stately/datepicker';
import {useDatePicker} from '@react-aria/datepicker';
// Reuse the DateField, Popover, Calendar, and Button from your component library. See below for details.
import {
Button,
Calendar,
DateField,
Popover
} from 'your-component-library';
function DatePicker(
props
) {
let state =
useDatePickerState(
props
);
let ref = React
.useRef();
let {
groupProps,
labelProps,
fieldProps,
buttonProps,
dialogProps,
calendarProps
} = useDatePicker(
props,
state,
ref
);
return (
<div
style={{
position:
'relative'
}}
>
<span
{...labelProps}
>
{props.label}
</span>
<div
{...groupProps}
ref={ref}
style={{
display: 'flex'
}}
>
<DateField
{...fieldProps}
/>
<Button
{...buttonProps}
>
🗓
</Button>
</div>
{state.isOpen &&
(
<Popover
{...dialogProps}
isOpen={state
.isOpen}
onClose={() =>
state
.setOpen(
false
)}
>
<Calendar
{...calendarProps}
/>
</Popover>
)}
</div>
);
}
<DatePicker label="Event date" />
Button#
The Button
component is used in the above example to trigger the calendar popover. It is built using the useButton hook, and can be shared with many other components.
Show code
import {useButton} from '@react-aria/button';
function Button(props) {
let ref = React.useRef();
let {buttonProps} = useButton(props, ref);
return <button {...buttonProps} ref={ref}>{props.children}</button>;
}
import {useButton} from '@react-aria/button';
function Button(props) {
let ref = React.useRef();
let { buttonProps } = useButton(props, ref);
return (
<button {...buttonProps} ref={ref}>
{props.children}
</button>
);
}
import {useButton} from '@react-aria/button';
function Button(props) {
let ref = React
.useRef();
let { buttonProps } =
useButton(
props,
ref
);
return (
<button
{...buttonProps}
ref={ref}
>
{props.children}
</button>
);
}
Popover#
The Popover
component is used to contain the popup calendar for the DatePicker
.
It can be shared between many other components, including Select,
Menu, Dialog, and others.
See useOverlayTrigger for more examples of popovers.
Show code
import {FocusScope} from '@react-aria/focus';
import {useDialog} from '@react-aria/dialog';
import {useOverlay, useModal, DismissButton} from '@react-aria/overlays';
import {mergeProps} from '@react-aria/utils';
function Popover(props) {
let ref = React.useRef();
let { popoverRef = ref, isOpen, onClose, children, ...otherProps } = props;
// Handle events that should cause the popup to close,
// e.g. blur, clicking outside, or pressing the escape key.
let { overlayProps } = useOverlay(
{
isOpen,
onClose,
shouldCloseOnBlur: true,
isDismissable: true
},
popoverRef
);
let { modalProps } = useModal();
let { dialogProps } = useDialog(otherProps, popoverRef);
// Add a hidden <DismissButton> component at the end of the popover
// to allow screen reader users to dismiss the popup easily.
return (
<FocusScope contain restoreFocus>
<div
{...mergeProps(overlayProps, modalProps, dialogProps)}
ref={popoverRef}
style={{
position: "absolute",
background: "var(--page-background)",
border: "1px solid gray",
marginTop: 4,
padding: 20,
zIndex: 1
}}
>
{children}
<DismissButton onDismiss={onClose} />
</div>
</FocusScope>
);
}
import {FocusScope} from '@react-aria/focus';
import {useDialog} from '@react-aria/dialog';
import {
DismissButton,
useModal,
useOverlay
} from '@react-aria/overlays';
import {mergeProps} from '@react-aria/utils';
function Popover(props) {
let ref = React.useRef();
let {
popoverRef = ref,
isOpen,
onClose,
children,
...otherProps
} = props;
// Handle events that should cause the popup to close,
// e.g. blur, clicking outside, or pressing the escape key.
let { overlayProps } = useOverlay(
{
isOpen,
onClose,
shouldCloseOnBlur: true,
isDismissable: true
},
popoverRef
);
let { modalProps } = useModal();
let { dialogProps } = useDialog(otherProps, popoverRef);
// Add a hidden <DismissButton> component at the end of the popover
// to allow screen reader users to dismiss the popup easily.
return (
<FocusScope contain restoreFocus>
<div
{...mergeProps(
overlayProps,
modalProps,
dialogProps
)}
ref={popoverRef}
style={{
position: 'absolute',
background: 'var(--page-background)',
border: '1px solid gray',
marginTop: 4,
padding: 20,
zIndex: 1
}}
>
{children}
<DismissButton onDismiss={onClose} />
</div>
</FocusScope>
);
}
import {FocusScope} from '@react-aria/focus';
import {useDialog} from '@react-aria/dialog';
import {
DismissButton,
useModal,
useOverlay
} from '@react-aria/overlays';
import {mergeProps} from '@react-aria/utils';
function Popover(props) {
let ref = React
.useRef();
let {
popoverRef = ref,
isOpen,
onClose,
children,
...otherProps
} = props;
// Handle events that should cause the popup to close,
// e.g. blur, clicking outside, or pressing the escape key.
let { overlayProps } =
useOverlay(
{
isOpen,
onClose,
shouldCloseOnBlur:
true,
isDismissable:
true
},
popoverRef
);
let { modalProps } =
useModal();
let { dialogProps } =
useDialog(
otherProps,
popoverRef
);
// Add a hidden <DismissButton> component at the end of the popover
// to allow screen reader users to dismiss the popup easily.
return (
<FocusScope
contain
restoreFocus
>
<div
{...mergeProps(
overlayProps,
modalProps,
dialogProps
)}
ref={popoverRef}
style={{
position:
'absolute',
background:
'var(--page-background)',
border:
'1px solid gray',
marginTop: 4,
padding: 20,
zIndex: 1
}}
>
{children}
<DismissButton
onDismiss={onClose}
/>
</div>
</FocusScope>
);
}
DateField#
The DateField
component implements the keyboard editable input used in a DatePicker
. It can also be used standalone, or within a date range picker. See useDateField for more examples and documentation.
Show code
import {useLocale} from '@react-aria/i18n';
import {useDateFieldState} from '@react-stately/datepicker';
import {useDateField, useDateSegment} from '@react-aria/datepicker';
function DateField(props) {
let {locale} = useLocale();
let state = useDateFieldState({
...props,
locale,
createCalendar
});
let ref = React.useRef();
let {labelProps, fieldProps} = useDateField(props, state, ref);
return (
<div className="wrapper">
<span {...labelProps}>{props.label}</span>
<div {...fieldProps} ref={ref} className="field">
{state.segments.map((segment, i) =>
<DateSegment key={i} segment={segment} state={state} />
)}
{state.validationState === 'invalid' &&
<span aria-hidden="true">🚫</span>
}
</div>
</div>
);
}
function DateSegment({segment, state}) {
let ref = React.useRef();
let {segmentProps} = useDateSegment(segment, state, ref);
return (
<div
{...segmentProps}
ref={ref}
className={`segment `}>
{segment.text}
</div>
);
}
import {useLocale} from '@react-aria/i18n';
import {useDateFieldState} from '@react-stately/datepicker';
import {
useDateField,
useDateSegment
} from '@react-aria/datepicker';
function DateField(props) {
let { locale } = useLocale();
let state = useDateFieldState({
...props,
locale,
createCalendar
});
let ref = React.useRef();
let { labelProps, fieldProps } = useDateField(
props,
state,
ref
);
return (
<div className="wrapper">
<span {...labelProps}>{props.label}</span>
<div {...fieldProps} ref={ref} className="field">
{state.segments.map((segment, i) => (
<DateSegment
key={i}
segment={segment}
state={state}
/>
))}
{state.validationState === 'invalid' &&
<span aria-hidden="true">🚫</span>}
</div>
</div>
);
}
function DateSegment({ segment, state }) {
let ref = React.useRef();
let { segmentProps } = useDateSegment(
segment,
state,
ref
);
return (
<div
{...segmentProps}
ref={ref}
className={`segment `}
>
{segment.text}
</div>
);
}
import {useLocale} from '@react-aria/i18n';
import {useDateFieldState} from '@react-stately/datepicker';
import {
useDateField,
useDateSegment
} from '@react-aria/datepicker';
function DateField(
props
) {
let { locale } =
useLocale();
let state =
useDateFieldState({
...props,
locale,
createCalendar
});
let ref = React
.useRef();
let {
labelProps,
fieldProps
} = useDateField(
props,
state,
ref
);
return (
<div className="wrapper">
<span
{...labelProps}
>
{props.label}
</span>
<div
{...fieldProps}
ref={ref}
className="field"
>
{state.segments
.map((
segment,
i
) => (
<DateSegment
key={i}
segment={segment}
state={state}
/>
))}
{state
.validationState ===
'invalid' &&
(
<span aria-hidden="true">
🚫
</span>
)}
</div>
</div>
);
}
function DateSegment(
{ segment, state }
) {
let ref = React
.useRef();
let { segmentProps } =
useDateSegment(
segment,
state,
ref
);
return (
<div
{...segmentProps}
ref={ref}
className={`segment `}
>
{segment.text}
</div>
);
}
Show CSS
.wrapper {
display: flex;
flex-direction: column;
align-items: flex-start;
}
.field {
display: inline-flex;
padding: 2px 4px;
border-radius: 2px;
border: 1px solid var(--gray);
background: var(--spectrum-global-color-gray-50);
}
.field:focus-within {
border-color: var(--blue);
}
.segment {
padding: 0 2px;
font-variant-numeric: tabular-nums;
text-align: end;
}
.segment.placeholder {
color: var(--react-spectrum-datepicker-placeholder-color);
}
.segment:focus {
color: white;
background: var(--blue);
outline: none;
border-radius: 2px;
}
.wrapper {
display: flex;
flex-direction: column;
align-items: flex-start;
}
.field {
display: inline-flex;
padding: 2px 4px;
border-radius: 2px;
border: 1px solid var(--gray);
background: var(--spectrum-global-color-gray-50);
}
.field:focus-within {
border-color: var(--blue);
}
.segment {
padding: 0 2px;
font-variant-numeric: tabular-nums;
text-align: end;
}
.segment.placeholder {
color: var(--react-spectrum-datepicker-placeholder-color);
}
.segment:focus {
color: white;
background: var(--blue);
outline: none;
border-radius: 2px;
}
.wrapper {
display: flex;
flex-direction: column;
align-items: flex-start;
}
.field {
display: inline-flex;
padding: 2px 4px;
border-radius: 2px;
border: 1px solid var(--gray);
background: var(--spectrum-global-color-gray-50);
}
.field:focus-within {
border-color: var(--blue);
}
.segment {
padding: 0 2px;
font-variant-numeric: tabular-nums;
text-align: end;
}
.segment.placeholder {
color: var(--react-spectrum-datepicker-placeholder-color);
}
.segment:focus {
color: white;
background: var(--blue);
outline: none;
border-radius: 2px;
}
Calendar#
The Calendar
component implements the month grid shown within the DatePicker
popover. It can also be used standalone, or within other components. See useCalendar for more examples and documentation.
Show code
import {useCalendarState} from '@react-stately/calendar';
import {
useCalendar,
useCalendarCell,
useCalendarGrid
} from '@react-aria/calendar';
import {VisuallyHidden} from '@react-aria/visually-hidden';
import {
createCalendar,
getWeeksInMonth,
startOfWeek
} from '@internationalized/date';
function Calendar(props) {
let { locale } = useLocale();
let state = useCalendarState({
...props,
locale,
createCalendar
});
let ref = React.useRef();
let { calendarProps, prevButtonProps, nextButtonProps, title } = useCalendar(
props,
state,
ref
);
return (
<div {...calendarProps} ref={ref} className="calendar">
<div className="header">
<h2>{title}</h2>
<Button {...prevButtonProps}><</Button>
<Button {...nextButtonProps}>></Button>
</div>
<CalendarGrid state={state} />
</div>
);
}
function CalendarGrid({ state, ...props }) {
let { locale } = useLocale();
let { gridProps, headerProps, weekDays } = useCalendarGrid(props, state);
let monthStart = startOfWeek(state.visibleRange.start, locale);
let weeksInMonth = getWeeksInMonth(state.visibleRange.start, locale);
return (
<table {...gridProps}>
<thead {...headerProps}>
<tr>
{weekDays.map((day, index) => <th key={index}>{day}</th>)}
</tr>
</thead>
<tbody>
{[...new Array(weeksInMonth).keys()].map((weekIndex) => (
<tr key={weekIndex}>
{[...new Array(7).keys()].map((dayIndex) => (
<CalendarCell
key={dayIndex}
state={state}
date={monthStart.add({ weeks: weekIndex, days: dayIndex })}
/>
))}
</tr>
))}
</tbody>
</table>
);
}
function CalendarCell({ state, date }) {
let ref = React.useRef();
let {
cellProps,
buttonProps,
isSelected,
isOutsideVisibleRange,
isDisabled,
isUnavailable,
formattedDate
} = useCalendarCell({ date }, state, ref);
return (
<td {...cellProps}>
<div
{...buttonProps}
ref={ref}
hidden={isOutsideVisibleRange}
className={`cell `}
>
{formattedDate}
</div>
</td>
);
}
import {useCalendarState} from '@react-stately/calendar';
import {
useCalendar,
useCalendarCell,
useCalendarGrid
} from '@react-aria/calendar';
import {VisuallyHidden} from '@react-aria/visually-hidden';
import {
createCalendar,
getWeeksInMonth,
startOfWeek
} from '@internationalized/date';
function Calendar(props) {
let { locale } = useLocale();
let state = useCalendarState({
...props,
locale,
createCalendar
});
let ref = React.useRef();
let {
calendarProps,
prevButtonProps,
nextButtonProps,
title
} = useCalendar(props, state, ref);
return (
<div {...calendarProps} ref={ref} className="calendar">
<div className="header">
<h2>
{title}
</h2>
<Button {...prevButtonProps}>
<
</Button>
<Button {...nextButtonProps}>></Button>
</div>
<CalendarGrid state={state} />
</div>
);
}
function CalendarGrid({ state, ...props }) {
let { locale } = useLocale();
let { gridProps, headerProps, weekDays } =
useCalendarGrid(props, state);
let monthStart = startOfWeek(
state.visibleRange.start,
locale
);
let weeksInMonth = getWeeksInMonth(
state.visibleRange.start,
locale
);
return (
<table {...gridProps}>
<thead {...headerProps}>
<tr>
{weekDays.map((day, index) => (
<th key={index}>
{day}
</th>
))}
</tr>
</thead>
<tbody>
{[...new Array(weeksInMonth).keys()].map(
(weekIndex) => (
<tr key={weekIndex}>
{[...new Array(7).keys()].map((dayIndex) => (
<CalendarCell
key={dayIndex}
state={state}
date={monthStart.add({
weeks: weekIndex,
days: dayIndex
})}
/>
))}
</tr>
)
)}
</tbody>
</table>
);
}
function CalendarCell({ state, date }) {
let ref = React.useRef();
let {
cellProps,
buttonProps,
isSelected,
isOutsideVisibleRange,
isDisabled,
isUnavailable,
formattedDate
} = useCalendarCell({ date }, state, ref);
return (
<td {...cellProps}>
<div
{...buttonProps}
ref={ref}
hidden={isOutsideVisibleRange}
className={`cell `}
>
{formattedDate}
</div>
</td>
);
}
import {useCalendarState} from '@react-stately/calendar';
import {
useCalendar,
useCalendarCell,
useCalendarGrid
} from '@react-aria/calendar';
import {VisuallyHidden} from '@react-aria/visually-hidden';
import {
createCalendar,
getWeeksInMonth,
startOfWeek
} from '@internationalized/date';
function Calendar(
props
) {
let { locale } =
useLocale();
let state =
useCalendarState({
...props,
locale,
createCalendar
});
let ref = React
.useRef();
let {
calendarProps,
prevButtonProps,
nextButtonProps,
title
} = useCalendar(
props,
state,
ref
);
return (
<div
{...calendarProps}
ref={ref}
className="calendar"
>
<div className="header">
<h2>{title}</h2>
<Button
{...prevButtonProps}
>
<
</Button>
<Button
{...nextButtonProps}
>
>
</Button>
</div>
<CalendarGrid
state={state}
/>
</div>
);
}
function CalendarGrid(
{ state, ...props }
) {
let { locale } =
useLocale();
let {
gridProps,
headerProps,
weekDays
} = useCalendarGrid(
props,
state
);
let monthStart =
startOfWeek(
state.visibleRange
.start,
locale
);
let weeksInMonth =
getWeeksInMonth(
state.visibleRange
.start,
locale
);
return (
<table
{...gridProps}
>
<thead
{...headerProps}
>
<tr>
{weekDays.map((
day,
index
) => (
<th
key={index}
>
{day}
</th>
))}
</tr>
</thead>
<tbody>
{[...new Array(
weeksInMonth
).keys()].map(
(weekIndex) => (
<tr
key={weekIndex}
>
{[...new Array(
7
).keys()]
.map(
(dayIndex) => (
<CalendarCell
key={dayIndex}
state={state}
date={monthStart
.add(
{
weeks:
weekIndex,
days:
dayIndex
}
)}
/>
)
)}
</tr>
)
)}
</tbody>
</table>
);
}
function CalendarCell(
{ state, date }
) {
let ref = React
.useRef();
let {
cellProps,
buttonProps,
isSelected,
isOutsideVisibleRange,
isDisabled,
isUnavailable,
formattedDate
} = useCalendarCell(
{ date },
state,
ref
);
return (
<td {...cellProps}>
<div
{...buttonProps}
ref={ref}
hidden={isOutsideVisibleRange}
className={`cell `}
>
{formattedDate}
</div>
</td>
);
}
Show CSS
.calendar {
width: 220px;
}
.header {
display: flex;
align-items: center;
gap: 4px;
margin: 0 8px;
}
.header h2 {
flex: 1;
margin: 0;
}
.calendar table {
width: 100%;
}
.cell {
cursor: default;
text-align: center;
}
.selected {
background: var(--blue);
color: white;
}
.unavailable {
color: var(--spectrum-global-color-red-600);
}
.disabled {
color: gray;
}
.calendar {
width: 220px;
}
.header {
display: flex;
align-items: center;
gap: 4px;
margin: 0 8px;
}
.header h2 {
flex: 1;
margin: 0;
}
.calendar table {
width: 100%;
}
.cell {
cursor: default;
text-align: center;
}
.selected {
background: var(--blue);
color: white;
}
.unavailable {
color: var(--spectrum-global-color-red-600);
}
.disabled {
color: gray;
}
.calendar {
width: 220px;
}
.header {
display: flex;
align-items: center;
gap: 4px;
margin: 0 8px;
}
.header h2 {
flex: 1;
margin: 0;
}
.calendar table {
width: 100%;
}
.cell {
cursor: default;
text-align: center;
}
.selected {
background: var(--blue);
color: white;
}
.unavailable {
color: var(--spectrum-global-color-red-600);
}
.disabled {
color: gray;
}
Styled examples#
Usage#
The following examples show how to use the DatePicker
component created in the above example.
Value#
A DatePicker
displays a placeholder date by default. An initial, uncontrolled value can be provided to the DatePicker
using the defaultValue
prop. Alternatively, a controlled value can be provided using the value
prop.
Date values are provided using objects in the @internationalized/date package. This library handles correct international date manipulation across calendars, time zones, and other localization concerns. useDatePicker
supports values of the following types:
CalendarDate
– a date without any time components. May be parsed from a string representation using theparseDate
function. Use this type to represent dates where the time is not important, such as a birthday or an all day calendar event.CalendarDateTime
– a date with a time, but not in any specific time zone. May be parsed from a string representation using theparseDateTime
function. Use this type to represent times that occur at the same local time regardless of the time zone, such as the time of New Years Eve fireworks which always occur at midnight. Most times are better stored as aZonedDateTime
.ZonedDateTime
– a date with a time in a specific time zone. May be parsed from a string representation using theparseZonedDateTime
,parseAbsolute
, orparseAbsoluteToLocal
functions. Use this type to represent an exact moment in time at a particular location on Earth.
import {parseDate} from '@internationalized/date';
function Example() {
let [value, setValue] = React.useState(parseDate('2020-02-03'));
return (
<>
<DatePicker
label="Date (uncontrolled)"
defaultValue={parseDate('2020-02-03')} />
<DatePicker
label="Date (controlled)"
value={value}
onChange={setValue} />
</>
);
}
import {parseDate} from '@internationalized/date';
function Example() {
let [value, setValue] = React.useState(
parseDate('2020-02-03')
);
return (
<>
<DatePicker
label="Date (uncontrolled)"
defaultValue={parseDate('2020-02-03')}
/>
<DatePicker
label="Date (controlled)"
value={value}
onChange={setValue}
/>
</>
);
}
import {parseDate} from '@internationalized/date';
function Example() {
let [value, setValue] =
React.useState(
parseDate(
'2020-02-03'
)
);
return (
<>
<DatePicker
label="Date (uncontrolled)"
defaultValue={parseDate(
'2020-02-03'
)}
/>
<DatePicker
label="Date (controlled)"
value={value}
onChange={setValue}
/>
</>
);
}
Events#
useDatePicker
accepts an onChange
prop which is triggered whenever the date 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.
import {getLocalTimeZone} from '@internationalized/date';
import {useDateFormatter} from '@react-aria/i18n';
function Example() {
let [date, setDate] = React.useState(parseDate('1985-07-03'));
let formatter = useDateFormatter({dateStyle: 'full'});
return (
<>
<DatePicker label="Birth date" value={date} onChange={setDate} />
<p>Selected date: {formatter.format(date.toDate(getLocalTimeZone()))}</p>
</>
);
}
import {getLocalTimeZone} from '@internationalized/date';
import {useDateFormatter} from '@react-aria/i18n';
function Example() {
let [date, setDate] = React.useState(
parseDate('1985-07-03')
);
let formatter = useDateFormatter({ dateStyle: 'full' });
return (
<>
<DatePicker
label="Birth date"
value={date}
onChange={setDate}
/>
<p>
Selected date:{' '}
{formatter.format(date.toDate(getLocalTimeZone()))}
</p>
</>
);
}
import {getLocalTimeZone} from '@internationalized/date';
import {useDateFormatter} from '@react-aria/i18n';
function Example() {
let [date, setDate] =
React.useState(
parseDate(
'1985-07-03'
)
);
let formatter =
useDateFormatter({
dateStyle: 'full'
});
return (
<>
<DatePicker
label="Birth date"
value={date}
onChange={setDate}
/>
<p>
Selected date:
{' '}
{formatter
.format(
date.toDate(
getLocalTimeZone()
)
)}
</p>
</>
);
}
Time zones#
useDatePicker
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';
<DatePicker
label="Event date"
defaultValue={parseZonedDateTime('2022-11-07T00:45[America/Los_Angeles]')}
/>
import {parseZonedDateTime} from '@internationalized/date';
<DatePicker
label="Event date"
defaultValue={parseZonedDateTime(
'2022-11-07T00:45[America/Los_Angeles]'
)}
/>
import {parseZonedDateTime} from '@internationalized/date';
<DatePicker
label="Event date"
defaultValue={parseZonedDateTime(
'2022-11-07T00:45[America/Los_Angeles]'
)}
/>
useDatePicker
displays times in the time zone included in the ZoneDateTime
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';
<DatePicker
label="Event date"
defaultValue={parseAbsoluteToLocal('2021-11-07T07:45:00Z')}
/>
import {parseAbsoluteToLocal} from '@internationalized/date';
<DatePicker
label="Event date"
defaultValue={parseAbsoluteToLocal(
'2021-11-07T07:45:00Z'
)}
/>
import {parseAbsoluteToLocal} from '@internationalized/date';
<DatePicker
label="Event date"
defaultValue={parseAbsoluteToLocal(
'2021-11-07T07:45:00Z'
)}
/>
Granularity#
The granularity
prop allows you to control the smallest unit that is displayed by useDatePicker
. By default, CalendarDate
values are displayed with "day"
granularity (year, month, and day), and CalendarDateTime
and ZonedDateTime
values are displayed with "minute"
granularity. More granular time values can be displayed by setting the granularity
prop to "second"
.
In addition, when a value with a time is provided but you wish to only display the date, you can set the granularity to "day"
. This has no effect on the actual value (it still has a time component), only on what fields are displayed. In the following example, two DatePickers are synchronized with the same value, but display different granularities.
function Example() {
let [date, setDate] = React.useState(
parseAbsoluteToLocal('2021-04-07T18:45:22Z')
);
return (
<>
<DatePicker
label="Date and time"
granularity="second"
value={date}
onChange={setDate}
/>
<DatePicker
label="Date"
granularity="day"
value={date}
onChange={setDate}
/>
</>
);
}
function Example() {
let [date, setDate] = React.useState(
parseAbsoluteToLocal('2021-04-07T18:45:22Z')
);
return (
<>
<DatePicker
label="Date and time"
granularity="second"
value={date}
onChange={setDate}
/>
<DatePicker
label="Date"
granularity="day"
value={date}
onChange={setDate}
/>
</>
);
}
function Example() {
let [date, setDate] =
React.useState(
parseAbsoluteToLocal(
'2021-04-07T18:45:22Z'
)
);
return (
<>
<DatePicker
label="Date and time"
granularity="second"
value={date}
onChange={setDate}
/>
<DatePicker
label="Date"
granularity="day"
value={date}
onChange={setDate}
/>
</>
);
}
If no value
or defaultValue
prop is passed, then the granularity
prop also affects which type of value is emitted from the onChange
event. Note that by default, time values will not have a time zone because none was supplied. You can override this by setting the placeholderValue
prop explicitly. Values emitted from onChange
will use the time zone of the placeholder value.
import {now} from '@internationalized/date';
<DatePicker
label="Event date"
granularity="second" />
<DatePicker
label="Event date"
placeholderValue={now('America/New_York')}
granularity="second" />
import {now} from '@internationalized/date';
<DatePicker
label="Event date"
granularity="second" />
<DatePicker
label="Event date"
placeholderValue={now('America/New_York')}
granularity="second" />
import {now} from '@internationalized/date';
<DatePicker
label="Event date"
granularity="second"
/>
<DatePicker
label="Event date"
placeholderValue={now(
'America/New_York'
)}
granularity="second"
/>
International calendars#
useDatePicker
supports selecting dates in many calendar systems used around the world, including Gregorian, Hebrew, Indian, Islamic, Buddhist, and more. Dates are automatically displayed in the appropriate calendar system for the user's locale. The calendar system can be overridden using the Unicode calendar locale extension, passed to the I18nProvider component.
Selected dates passed to onChange
always use the same calendar system as the value
or defaultValue
prop. If no value
or defaultValue
is provided, then dates passed to onChange
are always in the Gregorian calendar since this is the most commonly used. This means that even though the user selects dates in their local calendar system, applications are able to deal with dates from all users consistently.
The below example displays a DatePicker
in the Hindi language, using the Indian calendar. Dates emitted from onChange
are in the Gregorian calendar.
import {I18nProvider} from '@react-aria/i18n';
function Example() {
let [date, setDate] = React.useState(null);
return (
<I18nProvider locale="hi-IN-u-ca-indian">
<DatePicker label="Date" value={date} onChange={setDate} />
<p>Selected date: {date?.toString()}</p>
</I18nProvider>
);
}
import {I18nProvider} from '@react-aria/i18n';
function Example() {
let [date, setDate] = React.useState(null);
return (
<I18nProvider locale="hi-IN-u-ca-indian">
<DatePicker
label="Date"
value={date}
onChange={setDate}
/>
<p>Selected date: {date?.toString()}</p>
</I18nProvider>
);
}
import {I18nProvider} from '@react-aria/i18n';
function Example() {
let [date, setDate] =
React.useState(null);
return (
<I18nProvider locale="hi-IN-u-ca-indian">
<DatePicker
label="Date"
value={date}
onChange={setDate}
/>
<p>
Selected date:
{' '}
{date
?.toString()}
</p>
</I18nProvider>
);
}
Minimum and maximum values#
The minValue
and maxValue
props can also be used to perform builtin validation. This prevents the user from selecting dates outside the valid range in the calendar, and marks the date field as invalid using ARIA. You should implement a visual indication that the date picker is invalid as well.
This example only accepts dates after today.
import {today} from '@internationalized/date';
<DatePicker
label="Appointment date"
minValue={today(getLocalTimeZone())}
defaultValue={parseDate('2022-02-03')} />
import {today} from '@internationalized/date';
<DatePicker
label="Appointment date"
minValue={today(getLocalTimeZone())}
defaultValue={parseDate('2022-02-03')} />
import {today} from '@internationalized/date';
<DatePicker
label="Appointment date"
minValue={today(
getLocalTimeZone()
)}
defaultValue={parseDate(
'2022-02-03'
)}
/>
Unavailable dates#
useDatePicker
supports marking certain dates as unavailable. These dates remain focusable with the keyboard in the calendar so that navigation is consistent, but cannot be selected by the user. When an unavailable date is entered into the date field, it is marked as invalid. The isDateUnavailable
prop accepts a callback that is called to evaluate whether each visible date is unavailable.
This example includes multiple unavailable date ranges, e.g. dates when no appointments are available. In addition, all weekends are unavailable. The minValue
prop is also used to prevent selecting dates before today.
import {isWeekend, today} from '@internationalized/date';
import {useLocale} from '@react-aria/i18n';
function Example() {
let now = today(getLocalTimeZone());
let disabledRanges = [
[now, now.add({ days: 5 })],
[now.add({ days: 14 }), now.add({ days: 16 })],
[now.add({ days: 23 }), now.add({ days: 24 })]
];
let { locale } = useLocale();
let isDateUnavailable = (date) =>
isWeekend(date, locale) ||
disabledRanges.some((interval) =>
date.compare(interval[0]) >= 0 && date.compare(interval[1]) <= 0
);
return (
<DatePicker
label="Appointment date"
minValue={today(getLocalTimeZone())}
isDateUnavailable={isDateUnavailable}
/>
);
}
import {isWeekend, today} from '@internationalized/date';
import {useLocale} from '@react-aria/i18n';
function Example() {
let now = today(getLocalTimeZone());
let disabledRanges = [
[now, now.add({ days: 5 })],
[now.add({ days: 14 }), now.add({ days: 16 })],
[now.add({ days: 23 }), now.add({ days: 24 })]
];
let { locale } = useLocale();
let isDateUnavailable = (date) =>
isWeekend(date, locale) ||
disabledRanges.some((interval) =>
date.compare(interval[0]) >= 0 &&
date.compare(interval[1]) <= 0
);
return (
<DatePicker
label="Appointment date"
minValue={today(getLocalTimeZone())}
isDateUnavailable={isDateUnavailable}
/>
);
}
import {
isWeekend,
today
} from '@internationalized/date';
import {useLocale} from '@react-aria/i18n';
function Example() {
let now = today(
getLocalTimeZone()
);
let disabledRanges = [
[
now,
now.add({
days: 5
})
],
[
now.add({
days: 14
}),
now.add({
days: 16
})
],
[
now.add({
days: 23
}),
now.add({
days: 24
})
]
];
let { locale } =
useLocale();
let isDateUnavailable =
(date) =>
isWeekend(
date,
locale
) ||
disabledRanges
.some((
interval
) =>
date.compare(
interval[0]
) >= 0 &&
date.compare(
interval[1]
) <= 0
);
return (
<DatePicker
label="Appointment date"
minValue={today(
getLocalTimeZone()
)}
isDateUnavailable={isDateUnavailable}
/>
);
}
Placeholder value#
When no value is set, a placeholder value is shown. By default, this is today's date at midnight. However, this can be overridden by setting the placeholderValue
prop to a more appropriate placeholder for your specific usecase.
import {CalendarDate} from '@internationalized/date';
<DatePicker
label="Birth date"
placeholderValue={new CalendarDate(1980, 1, 1)}
/>
import {CalendarDate} from '@internationalized/date';
<DatePicker
label="Birth date"
placeholderValue={new CalendarDate(1980, 1, 1)}
/>
import {CalendarDate} from '@internationalized/date';
<DatePicker
label="Birth date"
placeholderValue={new CalendarDate(
1980,
1,
1
)}
/>
Hide time zone#
When a ZonedDateTime
object is provided as the value to useDatePicker
, 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.
<DatePicker
label="Appointment time"
defaultValue={parseZonedDateTime('2022-11-07T10:45[America/Los_Angeles]')}
hideTimeZone />
<DatePicker
label="Appointment time"
defaultValue={parseZonedDateTime(
'2022-11-07T10:45[America/Los_Angeles]'
)}
hideTimeZone
/>
<DatePicker
label="Appointment time"
defaultValue={parseZonedDateTime(
'2022-11-07T10:45[America/Los_Angeles]'
)}
hideTimeZone
/>
Hour cycle#
By default, useDatePicker
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 useDatePicker
to use 24-hour time, regardless of the locale.
<DatePicker
label="Appointment time"
granularity="minute"
hourCycle={24} />
<DatePicker
label="Appointment time"
granularity="minute"
hourCycle={24} />
<DatePicker
label="Appointment time"
granularity="minute"
hourCycle={24}
/>