DatePicker

Example

Patterns

Value

A DatePicker displays a placeholder 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 from the @internationalized/date package. This library handles correct international date manipulation across calendars, time zones, and other localization concerns. DatePicker supports values of the following types:

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  CalendarDate – a date without any time components. May be parsed from a string representation using the parseDate function. Use this type to represent dates where the time is not important, such as a birthday or an all day calendar event.
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  CalendarDateTime – a date with a time, but not in any specific time zone. May be parsed from a string representation using the parseDateTime 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 a ZonedDateTime.
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  ZonedDateTime – a date with a time in a specific time zone. May be parsed from a string representation using the parseZonedDateTime, parseAbsolute, or parseAbsoluteToLocal functions. Use this type to represent an exact moment in time at a particular location on Earth.

Time zones

DatePicker 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.

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  parseZonedDateTime – This function parses a date with an explicit time zone and optional UTC offset attached (e.g. "2023-04-14T00:45[Australia/Sydney]" or "2023-04-14T00:45+10:00[Australia/Sydney]"). 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.
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  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. "2023-04-14T07:45:00Z"), or stored with a particular offset (e.g. "2023-04-14T07:45:00+10:00"). A time zone identifier, e.g. Australia/Sydney, 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.
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  parseAbsoluteToLocal – This function parses an absolute date and time into the current user’s local time zone. It is a shortcut for parseAbsolute, and accepts the same formats.

DatePicker displays times in the time zone included in the ZonedDateTime object. The above example is always displayed in Australian Eastern Standard Time because the Australia/Sydney 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.

Granularity

The granularity prop allows you to control the smallest unit that is displayed by a DatePicker. 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.

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.

International calendars

DatePicker 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 Provider 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.

Formatting

DatePicker 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.

HTML Forms

DatePicker supports the name prop for integration with HTML forms. The value will be submitted to the server as an ISO 8601 formatted string according to the granularity of the value. For example, if the date picker allows selecting only a date then a string such as "2023-04-14" will be submitted, and if it allows selecting a time then a string such as "2023-04-14T08:45:00" will be submitted. See the Value section above for more details about the supported value types.

Props

Disabled

A date field can be disabled by setting the isDisabled prop. This can be used to maintain layout continuity and communicate that a field may become available later.

Read only

The isReadOnly prop makes the field’s value immutable. Unlike isDisabled, the field remains focusable.

Description

The description communicates a hint or helpful information, such as specific requirements for correctly filling out the field.

Help text

DatePicker also supports displaying the expected date format for the user’s locale automatically using the showFormatHelpText prop.

Error message

The errorMessage communicates validation errors when field requirements aren’t met. Prompting the user to adjust their input.

Minimum and maximum values

The minValue and maxValue props can also be used to perform builtin validation. This displays an invalid state if the user enters an invalid date. The example below only accepts dates after today.

Unavailable dates

DatePicker supports marking certain dates as unavailable. These dates cannot be selected by the user and are displayed with a crossed out appearance in the calendar. In the date field, an invalid state is displayed if a user enters an unavailable date. The isDateUnavailable prop accepts a callback that is called to evaluate whether a 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.

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 the current date at midnight, but you can set it to a more appropriate value if needed.

Hide time zone

When a ZonedDateTime object is provided as the value of a DatePicker, 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 prop.

Hour cycle

By default, DatePicker 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 the DatePicker to use 24-hour time, regardless of the locale.