LocalDate 昨日的开始时间戳

import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.ZoneId;
import java.time.ZonedDateTime;

public class Main {
    public static void main(String[] args) {
        // 获取昨天的日期
        LocalDate yesterday = LocalDate.now().minusDays(1);
        // 获取昨天的开始时间戳
        ZonedDateTime startOfYesterday = yesterday.atStartOfDay(ZoneId.systemDefault());
        System.out.println("昨日的开始时间戳：" + startOfYesterday.toInstant().toEpochMilli());
    }
}