Java Time Zone When Parsing DateFormat

by

tl;dr

OffsetDateTime.parse( "2010-12-27T10:50:44.000-08:00" )

ISO 8601

The input string format is defined in the ISO 8601 standard, a family of date-time formats.

Avoid old date-time classes

The Question and other Answers use old outmoded date-time classes bundled with the earliest versions of Java. Avoid them. Now supplanted by the java.time classes.

Using java.time

Your input string ends with an offset-from-UTC. So we parse as a OffsetDateTime object.

The java.time classes use ISO 8601 formats by default when parsing/generating strings. So no need to specify a formatting pattern.

OffsetDateTime odt = OffsetDateTime.parse( "2010-12-27T10:50:44.000-08:00" );

If you want to view this date-time value as a moment on the timeline in UTC, extract an Instant.

Instant instant = odt.toInstant();

A time zone is an offset plus a set of rules for handling anomalies such as Daylight Saving Time (DST). If you have a time zone in mind, apply a ZoneId to get a ZonedDateTime object. Same moment on the timeline, but viewed through a different wall-clock time.

ZoneId z = ZoneId.of( "America/Montreal" );
ZonedDateTime zdt = odt.atZoneSameInstant( z );  // Same moment on the timeline, but viewed through a different wall-clock time.

About java.time

The java.time framework is built into Java 8 and later. These classes supplant the troublesome old legacy date-time classes such as java.util.Date, Calendar, & SimpleDateFormat.

The Joda-Time project, now in maintenance mode, advises migration to the java.time classes.

To learn more, see the Oracle Tutorial. And search Stack Overflow for many examples and explanations. Specification is JSR 310.

You may exchange java.time objects directly with your database. Use a JDBC driver compliant with JDBC 4.2 or later. No need for strings, no need for java.sql.* classes.

Where to obtain the java.time classes?

The ThreeTen-Extra project extends java.time with additional classes. This project is a proving ground for possible future additions to java.time. You may find some useful classes here such as Interval, YearWeek, YearQuarter, and more.

More Related Contents:

  1. Timezone conversion
  2. Convert Date/Time for given Timezone – java
  3. Java SimpleDateFormat(“yyyy-MM-dd’T’HH:mm:ss’Z'”) gives timezone as IST
  4. Cannot parse String in ISO 8601 format, lacking colon in offset, to Java 8 Date
  5. How to store date/time and timestamps in UTC time zone with JPA and Hibernate
  6. SimpleDateFormat parsing date with ‘Z’ literal [duplicate]
  7. How to convert a String to a Date using SimpleDateFormat?
  8. Java 8 Date and Time: parse ISO 8601 string without colon in offset [duplicate]
  9. convert epoch time to date
  10. How to convert date time from one time zone to another time zone
  11. Java 8: Calculate difference between two ZonedDateTime
  12. Why is subtracting these two times (in 1927) giving a strange result?
  13. Converting ISO 8601-compliant String to java.util.Date
  14. Is java.sql.Timestamp timezone specific?
  15. java.util.Date vs java.sql.Date
  16. Sort objects in ArrayList by date?
  17. Convert timestamp in milliseconds to string formatted time in Java
  18. How to calculate elapsed time from now with Joda-Time?
  19. Parsing ISO 8601 date format like 2015-06-27T13:16:37.363Z in Java [duplicate]
  20. How do you subtract Dates in Java? [duplicate]
  21. Best way to compare dates in Android
  22. Why were most java.util.Date methods deprecated?
  23. Convert Java Date to UTC String
  24. Java Timestamp – How can I create a Timestamp with the date 23/09/2007?
  25. DateFormat parse – not return date in UTC
  26. Format a date using the new date time API
  27. Does Java 8’s new Java Date Time API take care of DST?
  28. How to get Date in the same format as String [duplicate]
  29. Date format conversion using Java
  30. Java SimpleDateFormat pattern for W3C XML dates with timezone [duplicate]

Leave a Comment