Convert string to DateTime object with Java 8

Question

I want to covert the following string with a zoned offset to a type DateTime with the new Java 8 time library in the simplest way possible:

2016-04-11T22:56:00.000-0500

I've experimented with the ISO_OFFSET_DATE_TIME format and ZonedDateTime objects, but I just can't seem to find a simple way to do it. Thanks in advance.

The zone offset parser expects the offset to be in the format -05:00 (with a :) — greg-449
– greg-449, Commented Apr 11, 2016 at 6:53
Java-8 does not have a type DateTime. Maybe you have confused this with Joda-Time. The Java-8-equivalent would be ZonedDateTime (or OffsetDateTime in this case). — Meno Hochschild
– Meno Hochschild, Commented Apr 11, 2016 at 13:46

assylias · Accepted Answer · 2016-04-11 07:18:00Z

3

I don't think you'll find a built-in formatter to parse that string, but it is fairly straightforward to create one:

DateTimeFormatter fmt = DateTimeFormatter.ofPattern("yyyy-MM-dd'T'HH:mm:ss.SSSx");
OffsetDateTime date = OffsetDateTime.parse("2016-04-11T22:56:00.000-0500", fmt);

answered Apr 11, 2016 at 7:18

assylias

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scottb · Accepted Answer · 2016-04-11 04:44:30Z

0

The solution to your problem should look something like this:

String ts = "2016-04-11T22:56:00.000-0500";
ZonedDateTime zdt = ZonedDateTime.parse(ts, DateTimeFormatter.ISO_OFFSET_DATE_TIME);

answered Apr 11, 2016 at 4:44

scottb

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2 Comments

corneria Over a year ago

Getting the following exception (using Java 1.8_77 for context) and I assume the complaint is in regard to the hyphen character before the zoned offset: Exception in thread "main" java.time.format.DateTimeParseException: Text '2016-04-11T22:56:00.000-0500' could not be parsed at index 23 at java.time.format.DateTimeFormatter.parseResolved0(Unknown Source) at java.time.format.DateTimeFormatter.parse(Unknown Source) at java.time.ZonedDateTime.parse(Unknown Source)

scottb Over a year ago

The provided formatter, ISO_OFFSET_DATE_TIME, is likely not defined to handle fractional seconds, which appear in your test string. It also likely expects a colon between the hours and minutes in the offset. You will therefore need to construct your own formatter to handle this case by using the DateTimeFormatter.ofPattern( ) function.

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