How to create a Java Date object of midnight today and midnight tomorrow?

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In my code I need to find all my things that happened today. So I need to compare against dates from today at 00:00 AM (midnight early this morning) to 12:00 PM (midnight tonight).

I know ...

Date today = new Date();

... gets me right now. And ...

Date beginning = new Date(0);

... gets me zero time on Jan 1, 1970. But what's an easy way to get zero time today and zero time tomorrow?

UPDATE

I did this, but surely there's an easier way?

Calendar calStart = new GregorianCalendar();
calStart.setTime(new Date());
calStart.set(Calendar.HOUR_OF_DAY, 0);
calStart.set(Calendar.MINUTE, 0);
calStart.set(Calendar.SECOND, 0);
calStart.set(Calendar.MILLISECOND, 0);
Date midnightYesterday = calStart.getTime();
            
Calendar calEnd = new GregorianCalendar();
calEnd.setTime(new Date());
calEnd.set(Calendar.DAY_OF_YEAR, calEnd.get(Calendar.DAY_OF_YEAR)+1);
calEnd.set(Calendar.HOUR_OF_DAY, 0);
calEnd.set(Calendar.MINUTE, 0);
calEnd.set(Calendar.SECOND, 0);
calEnd.set(Calendar.MILLISECOND, 0);
Date midnightTonight = calEnd.getTime();
date java
20 Answers

JDK8 - Java Time Module way:

LocalDateTime todayMidnight = LocalDate.now().atStartOfDay();

Also work:

LocalDateTime todayMidnight = LocalDateTime.now().with(LocalTime.MIDNIGHT);

user_95888640

Using apache commons..

//For midnight today 
Date today = new Date(); 
DateUtils.truncate(today, Calendar.DATE);

//For midnight tomorrow   
Date tomorrow = DateUtils.addDays(today, 1); 
DateUtils.truncate(tomorrow, Calendar.DATE);
user_15890450 
Date now= new Date();
// Today midnight
Date todayMidnight = new Date(endTime.getTime() -endTime.getTime()%DateUtils.MILLIS_PER_DAY);

// tomorrow midnight
Date tomorrowMidnight = new Date(endTime.getTime() -endTime.getTime()%DateUtils.MILLIS_PER_DAY + DateUtils.MILLIS_PER_DAY);
user_38320830

Old fashioned way..

private static Date getDateWithMidnight(){
    long dateInMillis = new Date().getTime();
    return new Date(dateInMillis - dateInMillis%(1000*60*60*24) - TimeZone.getDefault().getOffset(dateInMillis));
}
user_102389250
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