elementUI date selection control less one day problem-solving methods

In recent time to do the project with a wonderful vue problem, it's time to choose a date choose a date but I submit to a background of less than the selected day, a lot of online search a lot of people say do not use the v-model, change with change methods, later found to be a small increase of attribute: value-format = "yyyy-MM-dd" as:

     <el-form-item label="完成日期">
        <el-date-picker
           v-model="filters.endTime"
           type="date"
           placeholder="选择日期" 
　　　　　　 value-format="yyyy-MM-dd">
        </el-date-picker>
     </el-form-item>

Plus everything is normal after this property