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Calendar

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

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Mo
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	<script lang="ts">
  import { Calendar } from "bits-ui";
  import CaretLeft from "phosphor-svelte/lib/CaretLeft";
  import CaretRight from "phosphor-svelte/lib/CaretRight";
  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>

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
type required prop
enum

Whether or not multiple dates can be selected.

Default: undefined
value bindable prop
union

The selected date(s). If type is 'single', this will be a DateValue. If type is 'multiple', this will be an array of DateValues.

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: 'en'
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
disableDaysOutsideMonth
boolean

Whether or not to disable days outside the current month.

Default: false
ref bindable prop
HTMLDivElement

The underlying DOM element being rendered. You can bind to this to get a reference to the element.

Default: undefined
children
Snippet

The children content to render.

Default: undefined
child
Snippet

Use render delegation to render your own element. See delegation docs for more information.

Default: undefined
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
ref bindable prop
HTMLElement

The underlying DOM element being rendered. You can bind to this to get a reference to the element.

Default: undefined
children
Snippet

The children content to render.

Default: undefined
child
Snippet

Use render delegation to render your own element. See delegation docs for more information.

Default: undefined
Data Attribute Value Description
data-disabled
''

Present on the header element when the calendar is disabled.

data-readonly
''

Present on the header element when the calendar is readonly.

data-calendar-header
''

Present on the header element.

Calendar.Heading

The heading of the calendar.

Property Type Description
ref bindable prop
HTMLDivElement

The underlying DOM element being rendered. You can bind to this to get a reference to the element.

Default: undefined
children
Snippet

The children content to render.

Default: undefined
child
Snippet

Use render delegation to render your own element. See delegation docs for more information.

Default: undefined
Data Attribute Value Description
data-disabled
''

Present on the heading element when the calendar is disabled.

data-readonly
''

Present on the heading element when the calendar is readonly.

data-calendar-heading
''

Present on the heading element.

Calendar.NextButton

The next button of the calendar.

Property Type Description
ref bindable prop
HTMLButtonElement

The underlying DOM element being rendered. You can bind to this to get a reference to the element.

Default: undefined
children
Snippet

The children content to render.

Default: undefined
child
Snippet

Use render delegation to render your own element. See delegation docs for more information.

Default: undefined
Data Attribute Value Description
data-disabled
''

Present on the next button element when the calendar or this button is disabled.

data-calendar-next-button
''

Present on the next button element.

Calendar.PrevButton

The previous button of the calendar.

Property Type Description
ref bindable prop
HTMLButtonElement

The underlying DOM element being rendered. You can bind to this to get a reference to the element.

Default: undefined
children
Snippet

The children content to render.

Default: undefined
child
Snippet

Use render delegation to render your own element. See delegation docs for more information.

Default: undefined
Data Attribute Value Description
data-disabled
''

Present on the prev button element when the calendar or this button is disabled.

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
month
DateValue

The current month the date is being displayed in.

Default: undefined
ref bindable prop
HTMLTableCellElement

The underlying DOM element being rendered. You can bind to this to get a reference to the element.

Default: undefined
children
Snippet

The children content to render.

Default: undefined
child
Snippet

Use render delegation to render your own element. See delegation docs for more information.

Default: undefined
Data Attribute Value Description
data-disabled
''

Present when the day is disabled.

data-unavailable
''

Present when the day is unavailable.

data-today
''

Present when the day is today.

data-outside-month
''

Present when the day is outside the current month.

data-outside-visible-months
''

Present when the day is outside the visible months.

data-focused
''

Present when the day is focused.

data-selected
''

Present when the day is selected.

data-value
''

The date in the format "YYYY-MM-DD".

data-calendar-cell
''

Present on the cell element.

Calendar.Day

A day in the calendar grid.

Property Type Description
ref bindable prop
HTMLDivElement

The underlying DOM element being rendered. You can bind to this to get a reference to the element.

Default: undefined
children
Snippet

The children content to render.

Default: undefined
child
Snippet

Use render delegation to render your own element. See delegation docs for more information.

Default: undefined
Data Attribute Value Description
data-disabled
''

Present when the day is disabled.

data-unavailable
''

Present when the day is unavailable.

data-today
''

Present when the day is today.

data-outside-month
''

Present when the day is outside the current month.

data-outside-visible-months
''

Present when the day is outside the visible months.

data-focused
''

Present when the day is focused.

data-selected
''

Present when the day is selected.

data-value
''

The date in the format "YYYY-MM-DD".

data-calendar-day
''

Present on the day element.

Calendar.Grid

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

Property Type Description
ref bindable prop
HTMLTableElement

The underlying DOM element being rendered. You can bind to this to get a reference to the element.

Default: undefined
children
Snippet

The children content to render.

Default: undefined
child
Snippet

Use render delegation to render your own element. See delegation docs for more information.

Default: undefined
Data Attribute Value Description
data-disabled
''

Present on the grid element when the calendar is disabled.

data-readonly
''

Present on the grid element when the calendar is readonly.

data-calendar-grid
''

Present on the grid element.

Calendar.GridBody

The body of the grid of dates in the calendar.

Property Type Description
ref bindable prop
HTMLTableSectionElement

The underlying DOM element being rendered. You can bind to this to get a reference to the element.

Default: undefined
children
Snippet

The children content to render.

Default: undefined
child
Snippet

Use render delegation to render your own element. See delegation docs for more information.

Default: undefined
Data Attribute Value Description
data-disabled
''

Present on the grid element when the calendar is disabled.

data-readonly
''

Present on the grid element when the calendar is readonly.

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
ref bindable prop
HTMLTableSectionElement

The underlying DOM element being rendered. You can bind to this to get a reference to the element.

Default: undefined
children
Snippet

The children content to render.

Default: undefined
child
Snippet

Use render delegation to render your own element. See delegation docs for more information.

Default: undefined
Data Attribute Value Description
data-disabled
''

Present on the grid head element when the calendar is disabled.

data-readonly
''

Present on the grid head element when the calendar is readonly.

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
ref bindable prop
HTMLTableRowElement

The underlying DOM element being rendered. You can bind to this to get a reference to the element.

Default: undefined
children
Snippet

The children content to render.

Default: undefined
child
Snippet

Use render delegation to render your own element. See delegation docs for more information.

Default: undefined
Data Attribute Value Description
data-disabled
''

Present on the grid row element when the calendar is disabled.

data-readonly
''

Present on the grid row element when the calendar is readonly.

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
ref bindable prop
HTMLTableCellElement

The underlying DOM element being rendered. You can bind to this to get a reference to the element.

Default: undefined
children
Snippet

The children content to render.

Default: undefined
child
Snippet

Use render delegation to render your own element. See delegation docs for more information.

Default: undefined
Data Attribute Value Description
data-disabled
''

Present on the head cell element when the calendar is disabled.

data-readonly
''

Present on the head cell element when the calendar is readonly.

data-calendar-head-cell
''

Present on the head cell element.