获取一天的开始与结束时间

原创于 2022-06-02 11:02:49 发布 · 745 阅读

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public static Date getEndOfDay(Date date) {
    Calendar calendar = Calendar.getInstance();
    if (null != date) {
        calendar.setTime(date);
    }
    calendar.set(calendar.get(Calendar.YEAR), calendar.get(Calendar.MONTH), calendar.get(Calendar.DAY_OF_MONTH), 23, 59, 59);
    calendar.set(Calendar.MILLISECOND, 999);
    return calendar.getTime();
}

public static Date getStartOfDay(Date date) {
    LocalDateTime localDateTime = LocalDateTime.ofInstant(Instant.ofEpochMilli(date.getTime()), ZoneId.systemDefault());
    LocalDateTime endOfDay = localDateTime.with(LocalTime.MIN);
    return Date.from(endOfDay.atZone(ZoneId.systemDefault()).toInstant());
}