Calendar

Displays dates and days of the week, facilitating date-related interactions.

	<script lang="ts">
  import { Calendar } from "bits-ui";
  import { CaretLeft, CaretRight } from "$icons/index.js";
  import { getLocalTimeZone, today } from "@internationalized/date";
 
  const isDateUnavailable: Calendar.RootProps["isDateUnavailable"] = (date) => {
    return date.day === 17 || date.day === 18;
  };
 
  let value = $state(today(getLocalTimeZone()));
</script>
 
<Calendar.Root
  class="mt-6 rounded-[15px] border border-dark-10 bg-background-alt p-[22px] shadow-card"
  {isDateUnavailable}
  weekdayFormat="short"
  fixedWeeks={true}
  type="single"
  bind:value
>
  {#snippet children({ months, weekdays })}
    <Calendar.Header class="flex items-center justify-between">
      <Calendar.PrevButton
        class="inline-flex size-10 items-center justify-center rounded-9px bg-background-alt hover:bg-muted active:scale-98 active:transition-all"
      >
        <CaretLeft class="size-6" />
      </Calendar.PrevButton>
      <Calendar.Heading class="text-[15px] font-medium" />
      <Calendar.NextButton
        class="inline-flex size-10 items-center justify-center rounded-9px bg-background-alt hover:bg-muted active:scale-98 active:transition-all"
      >
        <CaretRight class="size-6" />
      </Calendar.NextButton>
    </Calendar.Header>
    <div
      class="flex flex-col space-y-4 pt-4 sm:flex-row sm:space-x-4 sm:space-y-0"
    >
      {#each months as month, i (i)}
        <Calendar.Grid class="w-full border-collapse select-none space-y-1">
          <Calendar.GridHead>
            <Calendar.GridRow class="mb-1 flex w-full justify-between">
              {#each weekdays as day}
                <Calendar.HeadCell
                  class="w-10 rounded-md text-xs !font-normal text-muted-foreground"
                >
                  <div>{day.slice(0, 2)}</div>
                </Calendar.HeadCell>
              {/each}
            </Calendar.GridRow>
          </Calendar.GridHead>
          <Calendar.GridBody>
            {#each month.weeks as weekDates}
              <Calendar.GridRow class="flex w-full">
                {#each weekDates as date}
                  <Calendar.Cell
                    {date}
                    month={month.value}
                    class="relative size-10 !p-0 text-center text-sm"
                  >
                    <Calendar.Day
                      class="group relative inline-flex size-10 items-center justify-center whitespace-nowrap rounded-9px border border-transparent bg-transparent p-0 text-sm font-normal text-foreground hover:border-foreground data-[disabled]:pointer-events-none data-[outside-month]:pointer-events-none data-[selected]:bg-foreground data-[selected]:font-medium data-[disabled]:text-foreground/30 data-[selected]:text-background data-[unavailable]:text-muted-foreground data-[unavailable]:line-through"
                    >
                      <div
                        class="absolute top-[5px] hidden size-1 rounded-full bg-foreground group-data-[today]:block group-data-[selected]:bg-background"
                      ></div>
                      {date.day}
                    </Calendar.Day>
                  </Calendar.Cell>
                {/each}
              </Calendar.GridRow>
            {/each}
          </Calendar.GridBody>
        </Calendar.Grid>
      {/each}
    </div>
  {/snippet}
</Calendar.Root>

Su	Mo	Tu	We	Th	Fr	Sa
1	2	3	4	5	6	7
8	9	10	11	12	13	14
15	16	17	18	19	20	21
22	23	24	25	26	27	28
29	30	31	1	2	3	4
5	6	7	8	9	10	11

Structure

	<script lang="ts">
	import { Calendar } from "bits-ui";
</script>
 
<Calendar.Root>
	{#snippet children({ months, weekdays })}
		<Calendar.Header>
			<Calendar.PrevButton />
			<Calendar.Heading />
			<Calendar.NextButton />
		</Calendar.Header>
 
		{#each months as month}
			<Calendar.Grid>
				<Calendar.GridHead>
					<Calendar.GridRow>
						{#each weekdays as day}
							<Calendar.HeadCell>
								{day}
							</Calendar.HeadCell>
						{/each}
					</Calendar.GridRow>
				</Calendar.GridHead>
				<Calendar.GridBody>
					{#each month.weeks as weekDates}
						<Calendar.GridRow>
							{#each weekDates as date}
								<Calendar.Cell {date} month={month.value}>
									<Calendar.Day />
								</Calendar.Cell>
							{/each}
						</Calendar.GridRow>
					{/each}
				</Calendar.GridBody>
			</Calendar.Grid>
		{/each}
	{/snippet}
</Calendar.Root>

API Reference

Calendar.Root

The root calendar component which contains all other calendar components.

Property	Type	Description
`value`	`DateValue`	The selected date. `Default: —— undefined`
`onValueChange`	`function`	A function that is called when the selected date changes. `Default: —— undefined`
`placeholder`	`DateValue`	The placeholder date, which is used to determine what month to display when no date is selected. This updates as the user navigates the calendar, and can be used to programatically control the calendar's view. `Default: —— undefined`
`onPlaceholderChange`	`function`	A function that is called when the placeholder date changes. `Default: —— undefined`
`pagedNavigation`	`boolean`	Whether or not to use paged navigation for the calendar. Paged navigation causes the previous and next buttons to navigate by the number of months displayed at once, rather than by one month. `Default: false`
`preventDeselect`	`boolean`	Whether or not to prevent the user from deselecting a date without selecting another date first. `Default: false`
`weekStartsOn`	`number`	The day of the week to start the calendar on. 0 is Sunday, 1 is Monday, etc. `Default: 0`
`weekdayFormat`	`enum`	The format to use for the weekday strings provided via the `weekdays` slot prop. `Default: 'narrow'`
`calendarLabel`	`string`	The accessible label for the calendar. `Default: —— undefined`
`fixedWeeks`	`boolean`	Whether or not to always display 6 weeks in the calendar. `Default: false`
`isDateDisabled`	`function`	A function that returns whether or not a date is disabled. `Default: —— undefined`
`isDateUnavailable`	`function`	A function that returns whether or not a date is unavailable. `Default: —— undefined`
`maxValue`	`DateValue`	The maximum date that can be selected. `Default: —— undefined`
`minValue`	`DateValue`	The minimum date that can be selected. `Default: —— undefined`
`locale`	`string`	The locale to use for formatting dates. `Default: —— undefined`
`multiple`	`boolean`	Whether or not multiple dates can be selected. `Default: false`
`numberOfMonths`	`number`	The number of months to display at once. `Default: 1`
`disabled`	`boolean`	Whether or not the accordion is disabled. `Default: false`
`readonly`	`boolean`	Whether or not the calendar is readonly. `Default: false`
`initialFocus`	`boolean`	If `true`, the calendar will focus the selected day, today, or the first day of the month in that order depending on what is visible when the calendar is mounted. `Default: false`
`asChild`	`boolean`	Whether to use render delegation with this component or not. `Default: false`
`el`	`HTMLDivElement`	The underlying DOM element being rendered. You can bind to this to programatically interact with the element. `Default: —— undefined`

Slot Property	Type	Description
`months`	`Month[]`	The current months to display in the calendar. Used to render the calendar.
`weekdays`	`string[]`	The days of the week to display in the calendar, typically used within the table header.
`builder`	`object`	The builder attributes and actions to apply to the element if using the `asChild` prop with delegation.

Data Attribute	Value	Description
`data-invalid`	`——`	Present on the root element when the calendar is invalid.
`data-disabled`	`——`	Present on the root element when the calendar is disabled.
`data-readonly`	`——`	Present on the root element when the calendar is readonly.
`data-calendar-root`	`——`	Present on the root element.

Calendar.Header

The header of the calendar.

Property	Type	Description
`asChild`	`boolean`	Whether to use render delegation with this component or not. `Default: false`
`el`	`HTMLElement`	The underlying DOM element being rendered. You can bind to this to programatically interact with the element. `Default: —— undefined`

Slot Property	Type	Description
`attrs`	`object`	Additional attributes to apply to the element if using the `asChild` prop with delegation.

Data Attribute	Value	Description
`data-calendar-header`	`——`	Present on the header element.

Calendar.Heading

The heading of the calendar.

Property	Type	Description
`asChild`	`boolean`	Whether to use render delegation with this component or not. `Default: false`
`el`	`HTMLDivElement`	The underlying DOM element being rendered. You can bind to this to programatically interact with the element. `Default: —— undefined`

Slot Property	Type	Description
`builder`	`object`	The builder attributes and actions to apply to the element if using the `asChild` prop with delegation.
`headingValue`	`string`	The heading value.

Data Attribute	Value	Description
`data-calendar-heading`	`——`	Present on the heading element.

Calendar.NextButton

The next button of the calendar.

Property	Type	Description
`asChild`	`boolean`	Whether to use render delegation with this component or not. `Default: false`
`el`	`HTMLButtonElement`	The underlying DOM element being rendered. You can bind to this to programatically interact with the element. `Default: —— undefined`

Slot Property	Type	Description
`builder`	`object`	The builder attributes and actions to apply to the element if using the `asChild` prop with delegation.

Data Attribute	Value	Description
`data-calendar-next-button`	`——`	Present on the next button element.

Calendar.PrevButton

The previous button of the calendar.

Property	Type	Description
`asChild`	`boolean`	Whether to use render delegation with this component or not. `Default: false`
`el`	`HTMLButtonElement`	The underlying DOM element being rendered. You can bind to this to programatically interact with the element. `Default: —— undefined`

Slot Property	Type	Description
`builder`	`object`	The builder attributes and actions to apply to the element if using the `asChild` prop with delegation.

Data Attribute	Value	Description
`data-calendar-prev-button`	`——`	Present on the prev button element.

Calendar.Cell

A cell in the calendar grid.

Property	Type	Description
`date`	`DateValue`	The date for the cell. `Default: —— undefined`
`asChild`	`boolean`	Whether to use render delegation with this component or not. `Default: false`
`el`	`HTMLTableCellElement`	The underlying DOM element being rendered. You can bind to this to programatically interact with the element. `Default: —— undefined`

Slot Property	Type	Description
`attrs`	`object`	Additional attributes to apply to the element if using the `asChild` prop with delegation.

Data Attribute	Value	Description
`data-disabled`	`——`	Present on the element when the date is disabled.
`data-calendar-cell`	`——`	Present on the cell element.

Calendar.Day

A day in the calendar grid.

Property	Type	Description
`date`	`DateValue`	The date for the cell. `Default: —— undefined`
`month`	`DateValue`	The current month the date is being displayed in. `Default: —— undefined`
`asChild`	`boolean`	Whether to use render delegation with this component or not. `Default: false`
`el`	`HTMLDivElement`	The underlying DOM element being rendered. You can bind to this to programatically interact with the element. `Default: —— undefined`

Slot Property	Type	Description
`disabled`	`boolean`	Whether or not the date is disabled.
`unavailable`	`boolean`	Whether or not the date is unavailable.
`selected`	`boolean`	Whether or not the date is selected.
`builder`	`object`	The builder attributes and actions to apply to the element if using the `asChild` prop with delegation.

Data Attribute	Value	Description
`data-disabled`	`——`	Present on the element when the date is disabled.
`data-selected`	`——`	Present on the element when the date is selected.
`data-unavailable`	`——`	Present on the element when the date is unavailable.
`data-value`	`——`	The date in the format "YYYY-MM-DD".
`data-today`	`——`	Present on the element when the date is today.
`data-outside-month`	`——`	Present on the element when the date is outside the current month.
`data-outside-visible-months`	`——`	Present on the element when the date is outside the visible months.
`data-focused`	`——`	Present on the element when the date is focused.
`data-calendar-day`	`——`	Present on the day element.

Calendar.Grid

The grid of dates in the calendar, typically representing a month.

Property	Type	Description
`asChild`	`boolean`	Whether to use render delegation with this component or not. `Default: false`
`el`	`HTMLTableElement`	The underlying DOM element being rendered. You can bind to this to programatically interact with the element. `Default: —— undefined`

Slot Property	Type	Description
`builder`	`object`	The builder attributes and actions to apply to the element if using the `asChild` prop with delegation.

Data Attribute	Value	Description
`data-calendar-grid`	`——`	Present on the grid element.

Calendar.GridBody

The body of the grid of dates in the calendar.

Property	Type	Description
`asChild`	`boolean`	Whether to use render delegation with this component or not. `Default: false`
`el`	`HTMLTableSectionElement`	The underlying DOM element being rendered. You can bind to this to programatically interact with the element. `Default: —— undefined`

Slot Property	Type	Description
`attrs`	`object`	Additional attributes to apply to the element if using the `asChild` prop with delegation.

Data Attribute	Value	Description
`data-calendar-grid-body`	`——`	Present on the grid body element.

Calendar.GridHead

The head of the grid of dates in the calendar.

Property	Type	Description
`asChild`	`boolean`	Whether to use render delegation with this component or not. `Default: false`
`el`	`HTMLTableSectionElement`	The underlying DOM element being rendered. You can bind to this to programatically interact with the element. `Default: —— undefined`

Slot Property	Type	Description
`attrs`	`object`	Additional attributes to apply to the element if using the `asChild` prop with delegation.

Data Attribute	Value	Description
`data-calendar-grid-head`	`——`	Present on the grid head element.

Calendar.GridRow

A row in the grid of dates in the calendar.

Property	Type	Description
`asChild`	`boolean`	Whether to use render delegation with this component or not. `Default: false`
`el`	`HTMLTableRowElement`	The underlying DOM element being rendered. You can bind to this to programatically interact with the element. `Default: —— undefined`

Slot Property	Type	Description
`attrs`	`object`	Additional attributes to apply to the element if using the `asChild` prop with delegation.

Data Attribute	Value	Description
`data-calendar-grid-row`	`——`	Present on the grid row element.

Calendar.HeadCell

A cell in the head of the grid of dates in the calendar.

Property	Type	Description
`asChild`	`boolean`	Whether to use render delegation with this component or not. `Default: false`
`el`	`HTMLTableCellElement`	The underlying DOM element being rendered. You can bind to this to programatically interact with the element. `Default: —— undefined`

Slot Property	Type	Description
`attrs`	`object`	Additional attributes to apply to the element if using the `asChild` prop with delegation.

Data Attribute	Value	Description
`data-calendar-head-cell`	`——`	Present on the head cell element.

Su	Mo	Tu	We	Th	Fr	Sa
1	2	3	4	5	6	7
8	9	10	11	12	13	14
15	16	17	18	19	20	21
22	23	24	25	26	27	28
29	30	31	1	2	3	4
5	6	7	8	9	10	11

Su	Mo	Tu	We	Th	Fr	Sa
1	2	3	4	5	6	7
8	9	10	11	12	13	14
15	16	17	18	19	20	21
22	23	24	25	26	27	28
29	30	31	1	2	3	4
5	6	7	8	9	10	11

Su	Mo	Tu	We	Th	Fr	Sa
1	2	3	4	5	6	7
8	9	10	11	12	13	14
15	16	17	18	19	20	21
22	23	24	25	26	27	28
29	30	31	1	2	3	4
5	6	7	8	9	10	11