Calendar

Month Grid

A month on a fixed 7×6 grid: the week starts on Monday and adjacent-month days stay visible and clickable.

calendar
date picker
month
intl

Preview

1440pxHost theme

Use it with AI

1. Copy the link.
2. Write to your agent in your own words and drop the link into the sentence.
3. The agent opens the link and installs the component from the registry.

put this in the header: https://vibeui.ru/c/calendar-001?lang=en

март 2026 г.

14 марта 2026 г.

Date

Locale

Accent

Show the full instructions

What the link says, spelled out. Use it when your agent cannot open links — paste this text instead.

# Install and place "calendar-001" (Month Grid) from VibeUI

## 1. Install first — do not skip, do not recreate
Run this exact command before writing any code:
npx shadcn@latest add https://vibeui.ru/r/calendar-001.json

Registry item: https://vibeui.ru/r/calendar-001.json
Installs to: components/vibeui/calendar-001.tsx (the exact path follows this project's components.json aliases).
npm dependencies: none.
Registry dependencies: none.

Install it from the registry. Do not recreate it from the description,
do not substitute a similar component from another library, and do not
rewrite it to match the project's existing style.

## 2. What it is
A month on a fixed 7×6 grid: the week starts on Monday and adjacent-month days stay visible and clickable.

A month calendar: a 7×6 grid of constant height, day selection, month navigation, a "Today" button and Intl-driven locale. Zero dependencies, one file.

## 3. How to use it
import { Calendar001 } from "@/components/vibeui/calendar-001"

Read the installed file for the full prop list.

## 4. Where to place it
This is a small inline component. Put it exactly where the user asked,
inside the existing markup. Do not create a new page, section or
wrapper for it. If a similar control already sits in that spot,
replace it instead of adding a second one.

Placement: ___
(The user fills this line in. If it is still blank, ask where to put it
instead of guessing.)

## 5. Keep exactly as installed
- the local --vibeui-calendar-001-* palette — do not swap it for your theme tokens
- six rows always: a month of varying height shoves everything below it
- the Monday-first shift on getDay(): JavaScript starts the week on Sunday
- the full-date aria-label on every button — a bare number means nothing aloud
- clickable adjacent-month days: reaching the 1st from the last row is routine
- ISO strings in and out rather than Date objects

## 6. You may change
- defaultValue — the starting date
- locale — the label language
- the onChange handler
- the accent through the accent prop

## 7. Rules
- Holidays, weekends and blocked days are unknown to the component: add your own flag to the day button.
- Time zones are ignored: an ISO string is treated as a local date, which is the right trade for picking a day.
- For a range use calendar-002; for two months, calendar-009.
- Do not lift the CSS variables into globals.css: the component has to stay a single file.

## 8. Verify
- it renders with no console errors;
- it looks like the preview on the VibeUI page you copied this from;
- if it does not, you changed something listed in section 5 — put it back.

For developers

npx shadcn@latest add https://vibeui.ru/r/calendar-001.json

https://vibeui.ru/r/calendar-001.json

Компонент самодостаточен: один файл, без зависимостей, собственная палитра в локальных переменных --vibeui-calendar-001-*. Клиентский: "use client". Дата приходит и уходит строкой ISO — её проще передать с сервера, чем объект Date. Сетка всегда 42 клетки, неделя считается с понедельника через сдвиг (getDay() + 6) % 7. Названия месяцев и дней даёт Intl.DateTimeFormat, поэтому язык меняется одним пропом.

Component source

The same file your agent installs. Here in case you would rather copy it by hand.

"use client"

import { useMemo, useState } from "react"
import type { ComponentPropsWithoutRef, CSSProperties } from "react"

export type Calendar001Props = Omit<
  ComponentPropsWithoutRef<"div">,
  "children" | "onChange" | "defaultValue"
> & {
  /** Дата в ISO: 2026-03-14. Строка, а не Date — её проще передать с сервера. */
  defaultValue?: string
  locale?: string
  onChange?: (iso: string) => void
  accent?: string
}

// Идея компонента: месяц на сетке 7×6 с постоянной высотой. Число строк
// фиксировано: месяц, который то на пять строк, то на шесть, дёргает всё
// под собой при переключении. Неделя начинается с понедельника, потому что
// в России и Европе так, а не как в JavaScript по умолчанию.
const STYLES = `
:where([data-vibeui-block="calendar-001"]){
--vibeui-calendar-001-bg:oklch(1 0 0);
--vibeui-calendar-001-fg:oklch(0.24 0.014 265);
--vibeui-calendar-001-muted:oklch(0.6 0.014 265);
--vibeui-calendar-001-border:oklch(0.91 0.006 265);
--vibeui-calendar-001-hover:oklch(0.96 0.004 265);
--vibeui-calendar-001-accent:oklch(0.55 0.17 265);
--vibeui-calendar-001-font:ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}
[data-vibeui-block="calendar-001"]{
display:flex;flex-direction:column;gap:0.625rem;
width:100%;max-width:18rem;box-sizing:border-box;padding:0.875rem;
background:var(--vibeui-calendar-001-bg);
border:1px solid var(--vibeui-calendar-001-border);border-radius:0.875rem;
color:var(--vibeui-calendar-001-fg);font-family:var(--vibeui-calendar-001-font);
}
[data-vibeui-block="calendar-001"] [data-part="head"]{
display:flex;align-items:center;justify-content:space-between;gap:0.5rem;
}
[data-vibeui-block="calendar-001"] [data-part="title"]{
font-size:0.875rem;font-weight:650;
}
/* Заглавная только первая буква: capitalize поднимает и «г.» в «январь 2026 г.». */
[data-vibeui-block="calendar-001"] [data-part="title"]::first-letter{text-transform:uppercase}
[data-vibeui-block="calendar-001"] [data-part="nav"]{display:flex;gap:0.25rem}
[data-vibeui-block="calendar-001"] [data-part="nav"] button{
appearance:none;cursor:pointer;
display:inline-flex;align-items:center;justify-content:center;
width:1.75rem;height:1.75rem;padding:0;
border:1px solid var(--vibeui-calendar-001-border);border-radius:0.5rem;
background:transparent;color:inherit;
}
[data-vibeui-block="calendar-001"] [data-part="nav"] button:hover{background:var(--vibeui-calendar-001-hover)}
[data-vibeui-block="calendar-001"] [data-part="nav"] button:focus-visible{outline:2px solid var(--vibeui-calendar-001-accent);outline-offset:2px}
[data-vibeui-block="calendar-001"] [data-part="arrow"]{
width:0.375rem;height:0.375rem;
border-left:1.5px solid currentColor;border-bottom:1.5px solid currentColor;
transform:rotate(45deg) translate(0.0625rem,-0.0625rem);
}
[data-vibeui-block="calendar-001"] [data-part="arrow"][data-dir="next"]{transform:rotate(-135deg) translate(0.0625rem,-0.0625rem)}
[data-vibeui-block="calendar-001"] table{width:100%;border-collapse:collapse;table-layout:fixed}
[data-vibeui-block="calendar-001"] th{
padding:0.25rem 0;font-size:0.6875rem;font-weight:600;
color:var(--vibeui-calendar-001-muted);text-transform:capitalize;
}
[data-vibeui-block="calendar-001"] td{padding:0.0625rem;text-align:center}
[data-vibeui-block="calendar-001"] td button{
appearance:none;cursor:pointer;
display:inline-flex;align-items:center;justify-content:center;
width:2rem;height:2rem;padding:0;border:0;border-radius:0.5rem;
background:transparent;color:inherit;
font:inherit;font-size:0.8125rem;font-variant-numeric:tabular-nums;
}
[data-vibeui-block="calendar-001"] td button:hover{background:var(--vibeui-calendar-001-hover)}
[data-vibeui-block="calendar-001"] td button:focus-visible{outline:2px solid var(--vibeui-calendar-001-accent);outline-offset:-2px}
/* Дни соседних месяцев приглушены, но кликабельны: попасть на 1 число
   следующего месяца из последней строки — обычное дело. */
[data-vibeui-block="calendar-001"] td button[data-outside="true"]{color:var(--vibeui-calendar-001-muted);opacity:.6}
[data-vibeui-block="calendar-001"] td button[data-today="true"]{box-shadow:inset 0 0 0 1px var(--vibeui-calendar-001-border);font-weight:650}
[data-vibeui-block="calendar-001"] td button[aria-pressed="true"]{
background:var(--vibeui-calendar-001-accent);color:oklch(0.99 0.01 265);font-weight:650;opacity:1;
}
[data-vibeui-block="calendar-001"] [data-part="footer"]{
display:flex;align-items:center;justify-content:space-between;gap:0.5rem;
font-size:0.75rem;color:var(--vibeui-calendar-001-muted);
}
[data-vibeui-block="calendar-001"] [data-part="today"]{
appearance:none;border:0;background:transparent;cursor:pointer;padding:0;
color:var(--vibeui-calendar-001-accent);font:inherit;font-size:0.75rem;font-weight:600;
}
@media (prefers-reduced-motion:reduce){[data-vibeui-block="calendar-001"] *{animation:none!important;transition:none!important}}
`

const DAY = 86400000

function iso(date: Date) {
  return `${date.getFullYear()}-${String(date.getMonth() + 1).padStart(2, "0")}-${String(date.getDate()).padStart(2, "0")}`
}

// Неделя с понедельника: getDay() отдаёт воскресенье нулём, и без сдвига
// сетка съезжает на день.
function mondayIndex(date: Date) {
  return (date.getDay() + 6) % 7
}

function buildGrid(year: number, month: number) {
  const first = new Date(year, month, 1)
  const start = new Date(first.getTime() - mondayIndex(first) * DAY)
  // Шесть строк всегда: месяц переменной высоты дёргает раскладку.
  return Array.from(
    { length: 42 },
    (_, index) => new Date(start.getTime() + index * DAY),
  )
}

/**
 * Месяц на сетке 7×6 с постоянной высотой и неделей с понедельника.
 * Один файл, ноль зависимостей, собственная палитра.
 */
export function Calendar001({
  defaultValue = "2026-03-14",
  locale = "ru-RU",
  onChange,
  accent,
  className,
  style,
  ...props
}: Calendar001Props) {
  const [selected, setSelected] = useState(defaultValue)
  const [cursor, setCursor] = useState(() => {
    const [year, month] = defaultValue.split("-").map(Number)
    return { year, month: month - 1 }
  })

  const days = useMemo(
    () => buildGrid(cursor.year, cursor.month),
    [cursor.month, cursor.year],
  )

  const titles = useMemo(() => {
    const week = new Intl.DateTimeFormat(locale, { weekday: "short" })
    const month = new Intl.DateTimeFormat(locale, {
      month: "long",
      year: "numeric",
    })
    return {
      weekdays: days.slice(0, 7).map((date) => week.format(date)),
      month: month.format(new Date(cursor.year, cursor.month, 1)),
      full: new Intl.DateTimeFormat(locale, { dateStyle: "long" }),
    }
  }, [cursor.month, cursor.year, days, locale])

  const palette = {
    ...(accent ? { "--vibeui-calendar-001-accent": accent } : null),
    ...style,
  } as CSSProperties

  const today = iso(new Date())

  const shift = (delta: number) => {
    const next = new Date(cursor.year, cursor.month + delta, 1)
    setCursor({ year: next.getFullYear(), month: next.getMonth() })
  }

  const pick = (date: Date) => {
    setSelected(iso(date))
    setCursor({ year: date.getFullYear(), month: date.getMonth() })
    onChange?.(iso(date))
  }

  return (
    <>
      <style href="vibeui-calendar-001" precedence="medium">
        {STYLES}
      </style>
      <div
        {...props}
        data-vibeui-block="calendar-001"
        className={className}
        style={palette}
      >
        <div data-part="head">
          <span data-part="title">{titles.month}</span>
          <span data-part="nav">
            <button
              type="button"
              aria-label="Предыдущий месяц"
              onClick={() => shift(-1)}
            >
              <span data-part="arrow" aria-hidden="true" />
            </button>
            <button
              type="button"
              aria-label="Следующий месяц"
              onClick={() => shift(1)}
            >
              <span data-part="arrow" data-dir="next" aria-hidden="true" />
            </button>
          </span>
        </div>
        <table>
          <thead>
            <tr>
              {titles.weekdays.map((day) => (
                <th key={day} scope="col" abbr={day}>
                  {day}
                </th>
              ))}
            </tr>
          </thead>
          <tbody>
            {Array.from({ length: 6 }, (_, row) => (
              <tr key={row}>
                {days.slice(row * 7, row * 7 + 7).map((date) => {
                  const value = iso(date)

                  return (
                    <td key={value}>
                      <button
                        type="button"
                        aria-pressed={value === selected}
                        aria-label={titles.full.format(date)}
                        data-outside={date.getMonth() !== cursor.month}
                        data-today={value === today}
                        onClick={() => pick(date)}
                      >
                        {date.getDate()}
                      </button>
                    </td>
                  )
                })}
              </tr>
            ))}
          </tbody>
        </table>
        <div data-part="footer">
          <span>{titles.full.format(new Date(`${selected}T00:00:00`))}</span>
          <button
            type="button"
            data-part="today"
            onClick={() => pick(new Date())}
          >
            Сегодня
          </button>
        </div>
      </div>
    </>
  )
}

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