How to convert Joda LocalDate to java.util.Date?

Question

What is the simplest way to convert a JodaTime LocalDate to java.util.Date object?

score 80 · Accepted Answer · edited Jun 20 '20 at 09:12

80

JodaTime

Date date = localDate.toDateTimeAtStartOfDay().toDate();

Date date = localDateTime.toDate();

Date date = Date.from(localDate.atStartOfDay().atZone(ZoneId.systemDefault()).toInstant());

Date date = Date.from(localDateTime.atZone(ZoneId.systemDefault()).toInstant());

You might be tempted to shorten it with LocalDateTime#toInstant(ZoneOffset), but there isn't a direct API to obtain the system default zone offset.

Date date = Date.from(zonedDateTime.toInstant());

edited Jun 20 '20 at 09:12

Community

answered Apr 08 '11 at 15:58

BalusC

1

For code safety, consider passing a timezone, because it will use the default one. – Yann Moisan Nov 03 '13 at 20:29
how to achieve this -->new LocalDateTime(Long.MAX_VALUE).toDateTimeAtStartOfDay().toDate, which causes overflow on long – Gowrav Jun 22 '17 at 16:58
Running in to a very specific issue with this. Our server is located in Malta and I am now handling a case of someone born on 1973-03-31. When converting this with toDateTimeAtStartOfDay() it becomes 1973-03-31 00:00:00.000 which is a moment in time that never existed in Malta because of Daylight Savings Time. I could just add the time as noon and the problem would be solved, but I am wondering if there is a cleaner way to convert this, as I never actually use the time, only the date. – Sander Oct 27 '17 at 09:10

score 10 · Answer 2 · answered Oct 08 '13 at 10:52

Since 2.0 version LocalDate has a toDate() method

Date date = localDate.toDate();

If using version 1.5 - 2.0 use:

Date date = localDate.toDateTimeAtStartOfDay().toDate();

On older versions you are left with:

Date date = localDate.toDateMidnight().toDate();

score 9 · Answer 3 · answered Apr 08 '11 at 16:01

9

You will need a timezone.

LocalDate date = ...

Date utilDate = date.toDateTimeAtStartOfDay( timeZone ).toDate( );

answered Apr 08 '11 at 16:01

score 6 · Answer 4 · answered Apr 08 '11 at 16:00

6

Maybe this?

localDate.toDateTimeAtCurrentTime().toDate();

answered Apr 08 '11 at 16:00

score -3 · Answer 5 · answered Jul 23 '14 at 11:35

-3

Try this.

new Date(localDate.toEpochDay())

answered Jul 23 '14 at 11:35

Alex Sales

3

Whilst toEpochDay() returns a long, and the Date constructor takes a long they are not the same thing. The Epoch Day count is a simple incrementing count of days where day 0 is 1970-01-01 (ISO). Whereas the constructor takes the specified number of milliseconds since the standard base time known as "the epoch". toEpochDay() gives you days, the constructor take milliseconds. – Kevin Sadler Dec 01 '14 at 15:29