Java parsing date with timezone from a string

问题

I want to parse a date with timezone from a string in the format "31-12-2014 18:09 +05:30". I tried to parse using simple-Date-Format using "d-MM-yyyy HH:mm ZZ" and "d-MM-yyyy HH:mm Z". But it is giving me a un-parables date exception. How to do this? Please help me.

回答1:

SimpleDateFormat sdf = new SimpleDateFormat("dd-MM-yyyy HH:mm XXX");
Date d = sdf.parse("31-12-2014 18:09 +05:30");
System.out.println(d);

Note that you can't use X before SimpleDateFormat of JDK7, because it's the ISO 8601 time zone format.

With Java 6 you can only use ZZZ but it won't match +05:30 because Z match RFC 822 time zone format

If you're using Java 6, please refer to this answer : Converting ISO 8601-compliant String to java.util.Date

回答2:

use X instead of Z or ZZ as below:

String str = "31-12-2014 18:09 +05:30";
DateFormat format = new SimpleDateFormat("dd-MM-yyyy HH:mm X");
System.out.println(format.parse(str));
Output:
Wed Dec 31 18:39:00 IST 2014

回答3:

You have two errors: first, you should use two ds for the day. Second, use X instead of Z for the timezone. X represents the format that you are using. See the docs for more info. http://docs.oracle.com/javase/7/docs/api/java/text/SimpleDateFormat.html

"dd-MM-yyyy HH:mm X"

回答4:

Others have pointed out the X option in Java SE 7. If you, however, have an older Java version, then you can change the timezone part to +0530, then it will work with Z (which is availabe even in Java SE 1.4).

来源：https://stackoverflow.com/questions/27721307/java-parsing-date-with-timezone-from-a-string