element-plus/docs/examples/datetime-picker/date-and-time.vue

<template>
  <div class="flex">
    <div class="block">
      <span class="demonstration">Default</span>
      <el-date-picker
        v-model="value1"
        type="datetime"
        placeholder="Select date and time"
      >
      </el-date-picker>
    </div>
    <div class="block">
      <span class="demonstration">With shortcuts</span>
      <el-date-picker
        v-model="value2"
        type="datetime"
        placeholder="Select date and time"
        :shortcuts="shortcuts"
      >
      </el-date-picker>
    </div>
    <div class="block">
      <span class="demonstration">With default time</span>
      <el-date-picker
        v-model="value3"
        type="datetime"
        placeholder="Select date and time"
        :default-time="defaultTime"
      >
      </el-date-picker>
    </div>
  </div>
</template>

<script lang="ts">
import { defineComponent, reactive, toRefs } from 'vue'

export default defineComponent({
  setup() {
    const state = reactive({
      shortcuts: [
        {
          text: 'Today',
          value: new Date(),
        },
        {
          text: 'Yesterday',
          value: () => {
            const date = new Date()
            date.setTime(date.getTime() - 3600 * 1000 * 24)
            return date
          },
        },
        {
          text: 'A week ago',
          value: () => {
            const date = new Date()
            date.setTime(date.getTime() - 3600 * 1000 * 24 * 7)
            return date
          },
        },
      ],
      value1: '',
      value2: '',
      value3: '',
      defaultTime: new Date(2000, 1, 1, 12, 0, 0), // '12:00:00'
    })

    return toRefs(state)
  },
})
</script>