diff --git a/src/utils/dateUtil.ts b/src/utils/dateUtil.ts
new file mode 100644
index 0000000..78e3178
--- /dev/null
+++ b/src/utils/dateUtil.ts
@@ -0,0 +1,150 @@
+import dayjs from 'dayjs'
+import calendar from 'dayjs/plugin/calendar'
+import quarterOfYear from 'dayjs/plugin/quarterOfYear'
+import relativeTime from 'dayjs/plugin/relativeTime'
+import updateLocale from 'dayjs/plugin/updateLocale'
+import utc from 'dayjs/plugin/utc'
+import weekday from 'dayjs/plugin/weekday'
+import 'dayjs/locale/zh-cn'
+
+dayjs.extend(calendar)
+dayjs.extend(quarterOfYear)
+dayjs.extend(relativeTime)
+dayjs.extend(updateLocale)
+dayjs.extend(utc)
+dayjs.extend(weekday)
+
+dayjs.locale('zh-cn')
+
+dayjs.updateLocale('zh-cn', {
+  calendar: {
+    sameDay: 'HH:mm',
+    nextDay: '[明天]',
+    nextWeek: 'dddd',
+    lastDay: '[昨天] HH:mm',
+    lastWeek: 'dddd HH:mm',
+    sameElse: 'YYYY年M月D日 HH:mm',
+  },
+  relativeTime: {
+    future: '%s后',
+    past: '%s前',
+    s: '几秒',
+    m: '1分钟',
+    mm: '%d分钟',
+    h: '1小时',
+    hh: '%d小时',
+    d: '1天',
+    dd: '%d天',
+    M: '1个月',
+    MM: '%d个月',
+    y: '1年',
+    yy: '%d年',
+  },
+})
+
+/** 时间工具 */
+export const dateUtil = dayjs
+
+export const DATETIME_FORMAT = 'YYYY-MM-DD HH:mm:ss'
+export const DATE_FORMAT = 'YYYY-MM-DD'
+export const TIME_FORMAT = 'HH:mm'
+
+/**
+ * 格式化日期
+ * @param _date 日期对象、时间戳或字符串
+ * @param format 格式字符串
+ * @returns 格式化后的日期字符串
+ */
+function _format(_date: dayjs.ConfigType, format: string): string {
+  if (!_date) {
+    return _date as any
+  }
+  const date = dateUtil(_date)
+  return date.isValid() ? date.format(format) : (_date as string)
+}
+/**
+ * 格式化为日期时间字符串
+ * @param date 日期对象、时间戳或字符串
+ * @param format 格式字符串，默认为 DATETIME_FORMAT
+ * @returns 格式化后的日期时间字符串
+ */
+export function formatToDatetime(date: dayjs.ConfigType = undefined, format: string = DATETIME_FORMAT): string {
+  return _format(date, format)
+}
+
+/**
+ * 格式化为日期字符串
+ * @param date 日期对象、时间戳或字符串
+ * @param format 格式字符串，默认为 DATE_FORMAT
+ * @returns 格式化后的日期字符串
+ */
+export function formatToDate(date: dayjs.ConfigType = undefined, format: string = DATE_FORMAT): string {
+  return _format(date, format)
+}
+
+/**
+ * 格式化为日期字符串
+ * @param date 日期对象、时间戳或字符串
+ * @param format 格式字符串，默认为 TIME_FORMAT
+ * @returns 格式化后的日期字符串
+ */
+export function formatToTime(date: dayjs.ConfigType = undefined, format: string = TIME_FORMAT): string {
+  return _format(date, format)
+}
+
+/**
+ * 时间人性化显示
+ * @param date 要格式化的日期
+ * @param oppositeDate 参考日期，默认为当前时间
+ * @returns 人性化的时间字符串
+ */
+export function humanizedDate(date: dayjs.ConfigType, oppositeDate: dayjs.ConfigType = undefined): string {
+  if (!date || !dateUtil(date).isValid()) {
+    return ''
+  }
+
+  const now = oppositeDate ? dateUtil(oppositeDate) : dateUtil()
+  const diffSeconds = now.diff(date, 'second')
+  const diffMinutes = now.diff(date, 'minute')
+  const diffHours = now.diff(date, 'hour')
+  const diffDays = now.diff(date, 'day')
+
+  if (diffSeconds < 60) {
+    return `${diffSeconds}秒前`
+  }
+  else if (diffMinutes < 60) {
+    return `${diffMinutes}分钟前`
+  }
+  else if (diffHours < 24) {
+    return `${diffHours}小时前`
+  }
+  else if (diffDays < 7) {
+    return `${diffDays}天前`
+  }
+  else {
+    return formatToDatetime(date)
+  }
+}
+
+/**
+ * 获取时辰问候语
+ * @returns 根据当前时间返回相应的问候语
+ */
+export function getGreeting(): string {
+  const currentHour = dateUtil().hour()
+  if (currentHour >= 5 && currentHour < 12) {
+    return '早上好'
+  }
+  else if (currentHour >= 12 && currentHour < 14) {
+    return '中午好'
+  }
+  else if (currentHour >= 14 && currentHour < 18) {
+    return '下午好'
+  }
+  else if (currentHour >= 18 && currentHour < 24) {
+    return '晚上好'
+  }
+  else {
+    return '深夜了'
+  }
+}