useDateFormat

类别

Time

导出大小

988 B

最近修改

2 days ago

根据传入的标记字符串获取格式化日期，灵感来自 dayjs。

🌐 Get the formatted date according to the string of tokens passed in, inspired by dayjs.

所有可用格式列表（默认 HH:mm:ss）：

Format	Output	Description
Yo	2018th	Ordinal formatted year
YY	18	Two-digit year
YYYY	2018	Four-digit year
M	1-12	The month, beginning at 1
Mo	1st, 2nd, ..., 12th	The month, ordinal formatted
MM	01-12	The month, 2-digits
MMM	Jan-Dec	The abbreviated month name
MMMM	January-December	The full month name
D	1-31	The day of the month
Do	1st, 2nd, ..., 31st	The day of the month, ordinal formatted
DD	01-31	The day of the month, 2-digits
H	0-23	The hour
Ho	0th, 1st, 2nd, ..., 23rd	The hour, ordinal formatted
HH	00-23	The hour, 2-digits
h	1-12	The hour, 12-hour clock
ho	1st, 2nd, ..., 12th	The hour, 12-hour clock, sorted
hh	01-12	The hour, 12-hour clock, 2-digits
m	0-59	The minute
mo	0th, 1st, ..., 59th	The minute, ordinal formatted
mm	00-59	The minute, 2-digits
s	0-59	The second
so	0th, 1st, ..., 59th	The second, ordinal formatted
ss	00-59	The second, 2-digits
SSS	000-999	The millisecond, 3-digits
A	AM PM	The meridiem
AA	A.M. P.M.	The meridiem, periods
a	am pm	The meridiem, lowercase
aa	a.m. p.m.	The meridiem, lowercase and periods
d	0-6	The day of the week, with Sunday as 0
dd	S-S	The min name of the day of the week
ddd	Sun-Sat	The short name of the day of the week
dddd	Sunday-Saturday	The name of the day of the week
z	GMT, GMT+1	The timezone with offset
zz	GMT, GMT+1	The timezone with offset
zzz	GMT, GMT+1	The timezone with offset
zzzz	GMT, GMT+01:00	The long timezone with offset

• 通过在 options 中定义 customMeridiem 可以自定义午前/下午标记。

示例

源代码在线运行

Saturday 2026-02-07 22:39:42

Formatter Editor :

English (US)FrenchGerman

用法

🌐 Usage

基本的

🌐 Basic

<script setup lang="ts">
import { useDateFormat, useNow } from '@vueuse/core'

const formatted = useDateFormat(useNow(), 'YYYY-MM-DD HH:mm:ss')
</script>

<template>
  <div>{{ formatted }}</div>
</template>

与区域设置一起使用

🌐 Use with locales

<script setup lang="ts">
import { useDateFormat, useNow } from '@vueuse/core'

const formatted = useDateFormat(useNow(), 'YYYY-MM-DD (ddd)', { locales: 'en-US' })
</script>

<template>
  <div>{{ formatted }}</div>
</template>

与自定义子午线一起使用

🌐 Use with custom meridiem

<script setup lang="ts">
import { useDateFormat } from '@vueuse/core'

function customMeridiem(hours: number, minutes: number, isLowercase?: boolean, hasPeriod?: boolean) {
  const m = hours > 11 ? (isLowercase ? 'μμ' : 'ΜΜ') : (isLowercase ? 'πμ' : 'ΠΜ')
  return hasPeriod ? m.split('').reduce((acc, current) => acc += `${current}.`, '') : m
}

const am = useDateFormat('2022-01-01 05:05:05', 'hh:mm:ss A', { customMeridiem })
// am.value = '05:05:05 ΠΜ'
const pm = useDateFormat('2022-01-01 17:05:05', 'hh:mm:ss AA', { customMeridiem })
// pm.value = '05:05:05 Μ.Μ.'
</script>