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A calendar component that allows users to select a date or a range of dates.
Installation
Usage
import { Calendar } from "@/components/ui/calendar"const [date, setDate] = React.useState<Date | undefined>(new Date())
return (
<Calendar
mode="single"
selected={date}
onSelect={setDate}
className="rounded-lg border"
/>
)See the React DayPicker documentation for more information.
About
The Calendar component is built on top of React DayPicker.
Date Picker
You can use the <Calendar> component to build a date picker. See the Date Picker page for more information.
Selected Date (With TimeZone)
The Calendar component accepts a timeZone prop to ensure dates are displayed and selected in the user's local timezone.
export function CalendarWithTimezone() {
const [date, setDate] = React.useState<Date | undefined>(undefined)
const [timeZone, setTimeZone] = React.useState<string | undefined>(undefined)
React.useEffect(() => {
setTimeZone(Intl.DateTimeFormat().resolvedOptions().timeZone)
}, [])
return (
<Calendar
mode="single"
selected={date}
onSelect={setDate}
timeZone={timeZone}
/>
)
}Note: If you notice a selected date offset (for example, selecting the 20th highlights the 19th), make sure the timeZone prop is set to the user's local timezone.
Why client-side? The timezone is detected using Intl.DateTimeFormat().resolvedOptions().timeZone inside a useEffect to ensure compatibility with server-side rendering. Detecting the timezone during render would cause hydration mismatches, as the server and client may be in different timezones.
Basic
A basic calendar component. We used className="rounded-lg border" to style the calendar.
Range Calendar
Use the mode="range" prop to enable range selection.
Month and Year Selector
Use captionLayout="dropdown" to show month and year dropdowns.
Presets
Date and Time Picker
Booked dates
Custom Cell Size
You can customize the size of calendar cells using the --cell-size CSS variable. You can also make it responsive by using breakpoint-specific values:
<Calendar
mode="single"
selected={date}
onSelect={setDate}
className="rounded-lg border [--cell-size:--spacing(11)] md:[--cell-size:--spacing(12)]"
/>Or use fixed values:
<Calendar
mode="single"
selected={date}
onSelect={setDate}
className="rounded-lg border [--cell-size:2.75rem] md:[--cell-size:3rem]"
/>Week Numbers
Use showWeekNumber to show week numbers.
API Reference
See the React DayPicker documentation for more information on the Calendar component.