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javaandroidthreetenbpthreetenabp
Jonik
Jonik

Reputation: 81792

How to convert ZonedDateTime/OffsetDateTime to Date using ThreeTenABP?

Using the ThreeTen Android Backport library, what is the simplest way to convert a ZonedDateTime or OffsetDateTime into an old-school java.util.Date instance?

If I had full Java 8 libs at my disposal, this of course would be the way to do it (as in this question):

Date.from(zonedDateTime.toInstant());

But I cannot use that on Android; specifically Date.from(Instant instant) is missing.

Upvotes: 29

Views: 74333

Answers (2)

JodaStephen
JodaStephen

Reputation: 63405

See DateTimeUtils which handles the methods added to classes like java.util.Date: http://www.threeten.org/threetenbp/apidocs/org/threeten/bp/DateTimeUtils.html

Edit: using that, the complete code would be:

DateTimeUtils.toDate(zonedDateTime.toInstant())

Upvotes: 19

Jonik
Jonik

Reputation: 81792

Well, one straightforward way is to get milliseconds since epoch and create the Date from that:

long epochMilli = zonedDateTime.toInstant().toEpochMilli();
Date date = new Date(epochMilli);

Feel free to point out if there's some preferable way.

Upvotes: 49

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