# Display week numbers

> Display week numbers

A shadcn/ui block from the [@reui](https://reui.io) registry, listed on [shadcn.exchange](https://shadcn.exchange/r/reui/c-calendar-10).

- Page, with a live preview: https://shadcn.exchange/r/reui/c-calendar-10
- Screenshot: https://abzjhwgwpdpz7ua5.public.blob.vercel-storage.com/shots/reui/c-calendar-10-light-6ba5b1e56c637861.png
- Registry item: https://reui.io/r/new-york-v4/c-calendar-10.json
- Listed: 2026-10-13, source last changed 2026-10-13

## Install

```bash
npx shadcn@latest add https://reui.io/r/new-york-v4/c-calendar-10.json
```

Run it in a project that has shadcn/ui set up. It adds the files below and installs what they depend on.

## Dependencies

- npm packages: `react-day-picker`
- Registry items: `calendar`, `card`

## Files

### `c-calendar-10.tsx`

```tsx
"use client"

import { useState } from "react"
import type { WeekNumberProps } from "react-day-picker"

import { Calendar } from "@/components/ui/calendar"
import { Card, CardContent } from "@/components/ui/card"

export function Pattern() {
  const [date, setDate] = useState<Date | undefined>(new Date())

  return (
    <Card className="p-0">
      <CardContent className="p-0">
        <Calendar
          components={{
            WeekNumber: ({ week, ...props }: WeekNumberProps) => {
              return (
                <th {...props}>
                  <span className="text-muted-foreground inline-flex size-8 items-center justify-center text-sm font-normal">
                    {week.weekNumber}
                  </span>
                </th>
              )
            },
          }}
          fixedWeeks
          mode="single"
          onSelect={setDate}
          selected={date}
          showWeekNumber
        />
      </CardContent>
    </Card>
  )
}
```