element-uiで設定した日付の制限時間

 <el-date-picker
     v-model="date"
        type="datetimerange"
        :picker-options="pickerOptions"
        range-separator=" "
        start-placeholder="    "
        end-placeholder="    ">
</el-date-picker>

  pickerMinDate:'',//        
  pickerMaxDate:'',//        
  pickerOptions: { //        
    onPick: ({ maxDate, minDate }) => {
      if(minDate){
        this.pickerMinDate = minDate.getTime()
      }
      if (maxDate) {
        this.pickerMinDate = ''
        this.pickerMaxDate =  maxDate.getTime()
      }
    },
    disabledDate: (time) => {
      const day30 = (30 - 1) * 24 * 3600 * 1000
      if (this.pickerMinDate !== '') {
        let maxTime = this.pickerMinDate + day30
        if (maxTime > new Date()) {
          maxTime = new Date()
        }
        return time.getTime() > maxTime || time.getTime() > Date.now()
      }
      if (this.pickerMaxDate !== '' && !this.pickerMinDate) {
        let minTime = this.pickerMaxDate - day30
        return time.getTime() < minTime || time.getTime() > Date.now()
      }
      return time.getTime() > Date.now()
    }
  },