Use disabled-date & disabled-time in the a-date-picker component, and use it on the component: show-time="{ defaultValue: moment('00:00:00','HH:mm:ss') }" (The code reference comes from the official website document-unselectable date and time), if the defaultValue is set to 23:59:59 seconds, the disabled-date will be automatically updated and reduced by one day after clicking today (for example, today July 13th, click the 13th), As shown below #4316