import java.text.SimpleDateFormat;
import java.time.Instant;
import java.time.LocalDateTime;
import java.time.LocalTime;
import java.time.ZoneId;
import java.util.Date;
public class GetMaxMinTime {
public static void main(String[] args) {
Date date = new Date();
System.out.println("今天开始时间：" + getStartOfDay(date));
System.out.println("今天结束时间：" + getEndOfDay(date));
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
System.out.println(sdf.format(getStartOfDay(date)));
System.out.println(sdf.format(getEndOfDay(date)));
}
// 获得某天最大时间 2017-10-15 23:59:59
public static Date getEndOfDay(Date date) {
LocalDateTime localDateTime = LocalDateTime.ofInstant(Instant.ofEpochMilli(date.getTime()), ZoneId.systemDefault());;
LocalDateTime endOfDay = localDateTime.with(LocalTime.MAX);
return Date.from(endOfDay.atZone(ZoneId.systemDefault()).toInstant());
}
// 获得某天最小时间 2017-10-15 00:00:00
public static Date getStartOfDay(Date date) {
LocalDateTime localDateTime = LocalDateTime.ofInstant(Instant.ofEpochMilli(date.getTime()), ZoneId.systemDefault());
LocalDateTime startOfDay = localDateTime.with(LocalTime.MIN);
return Date.from(startOfDay.atZone(ZoneId.systemDefault()).toInstant());
}
}
原文链接：http://blog.csdn.net/gisboygogogo/article/details/78239925
