How to set a Java Date object's value to yesterday? [duplicate]

Question

Possible Duplicate:
Get yesterday's date using Date

What is an elegant way set to a Java Date object's value to yesterday?

The modern/current answer is here.

Anonymous
– Anonymous

2019-03-28 10:10:08 +00:00
Commented Mar 28, 2019 at 10:10 — Anonymous
– Anonymous, Commented Mar 28, 2019 at 10:10

Eugene · Accepted Answer · 2012-08-15 08:15:29Z

19

 LocalDate today = LocalDate.now(); LocalDate yesterday = today.minus(Period.days(1)); System.out.printf("Today is : %s, Yesterday : %s", today.toString("yyyy-MM-dd"), yesterday.toString("yyyy-MM-dd"));

answered Aug 15, 2012 at 8:15

Eugene

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2 Comments

mikera Over a year ago

+1 for using JodaTime instead of Date.

Vitalii Diravka Over a year ago

Java 8 LocalDate is very similar: LocalDate.now().minusDays( 1 )

Peter Lawrey · Accepted Answer · 2012-08-15 08:15:17Z

Do you mean to go back 24 hours in time.

 Date date = new Date(System.currentTimeMillis() - 24 * 60 * 60 * 1000L);

or to go back one day at the time same time (this can be 23 or 25 hours depending on daylight savings)

 Calendar cal = Calendar.getInstance(); cal.add(Calendar.DATE, -1);

These are not exactly the same due to daylight saving.

Community · Accepted Answer · 2017-05-23 12:02:30Z

Convert the Date to a Calendar object and "roll" it back a single day. Something like this helper method take from here:

public static void addDays(Date d, int days) { Calendar c = Calendar.getInstance(); c.setTime(d); c.add(Calendar.DATE, days); d.setTime(c.getTime().getTime()); }

For your specific case, just pass in days as -1 and you should be done. Just make sure you take into consideration the timezone/locale if doing extensive date specific manipulations.

bouazizi · Accepted Answer · 2012-08-15 08:21:24Z

you can try the follwing code: Calendar cal = Calendar.getInstance(); DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd"); System.out.println("Today's date is "+dateFormat.format(cal.getTime())); cal.add(Calendar.DATE, -1); System.out.println("Yesterday's date was "+dateFormat.format(cal.getTime()));

That looks similar to @UVM's answer. Can you try adding something his answer doesn't?
I know its fine, its just that its much the same as an earlier posting.

TomRed · Accepted Answer · 2012-08-15 08:37:33Z

As many people have already said use Calendar rather than date.

If you find you really want to use dates:

Calendar cal = Calendar.getInstance(); cal.add(Calendar.HOUR, -24); cal.getTime();//returns a Date object Calendar cal1 = Calendar.getInstance(); cal1.add(Calendar.DAY_OF_MONTH, -1); cal1.getTime();//returns a Date object

I hope this helps. tomred

Michael Petrotta · Accepted Answer · 2013-10-04 00:57:29Z

You can try the following example to set it to previous date.

Calendar cal = Calendar.getInstance(); DateFormat dateFormat = new SimpleDateFormat("MM/dd/yyyy"); System.out.println("Today's date is " +dateFormat.format(cal.getTime())); cal.add(Calendar.DATE, -1); System.out.println("Yesterday's date was "+dateFormat.format(cal.getTime()));

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