Java获取昨天、当天、明天的某一个时间点

下面以22点(晚上10点)为例，获取昨天、当天、明天的22:00:00

// 前一天22:00

public static Date getStartTime() {

Calendar time = Calendar.getInstance();

time.add(Calendar.DATE, -1);

time.set(Calendar.HOUR_OF_DAY, 22);

time.set(Calendar.MINUTE, 0);

time.set(Calendar.SECOND, 0);

time.set(Calendar.MILLISECOND, 0);

return time.getTime();

}

// 当天22:00

public static Date getEndTime() {

Calendar time = Calendar.getInstance();

time.set(Calendar.HOUR_OF_DAY, 22);

time.set(Calendar.MINUTE, 00);

time.set(Calendar.SECOND, 00);

time.set(Calendar.MILLISECOND, 999);

return time.getTime();

}

// 第二天22:00

public static Date getNextDayEndTime() {

Calendar time = Calendar.getInstance();

time.add(Calendar.DATE, 1);

time.set(Calendar.HOUR_OF_DAY, 22);

time.set(Calendar.MINUTE, 00);

time.set(Calendar.SECOND, 00);

time.set(Calendar.MILLISECOND, 999);

return time.getTime();

}

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