bootstrap时间选择器禁用某年某月某天的日期

bootstrapvue中的时间选择器怎么去禁用具体的那年那月那天的时间啊？

<template>
  <div>
    <b-form-datepicker v-model="value" :date-disabled-fn="dateDisabled" locale="en"></b-form-datepicker>
  </div>
</template>

<script>
  export default {
    data() {
      return {
        value: '',
        Time:[7,8]
      }
    },
    methods: {
      dateDisabled(ymd, date) {
        
        const weekday = date.getDay()
        const day = date.getDate()
        // Return `true` if the date should be disabled
        return weekday === 0 || weekday === 6 || day === this.Time[1]
      }
    }
  }
</script>

  dateDisabled(ymd, date) {
         let list = ['2021-10-27','2021-10-28'];
         return list.includes(ymd);
      }