I have a string with timezone included like 2020-11-12T12:00:00-0800. When I converting into to date in the JAVA time zone automatically changing to IST, can someone help with this? thanks in advance.
String s = '2020-11-12T12:00:00-0800'
DateFormat format = new SimpleDateFormat("yyyy-MM-dd'T'hh:mm:ssZ");
date = format.parse(s);
Just omit the timezone format from the end of the String (letter Z).
For example, this will print Thu Nov 12 06:30:00 CET 2020
String s = "2020-11-12T6:30:00-0800";
DateFormat format = new SimpleDateFormat("yyyy-MM-dd'T'hh:mm:ss");
var date = format.parse(s);
System.out.println(date);
But if I add the letter Z at the end, it will interpret the given timezone and change time to my local timezone, when printed. So this will print Thu Nov 12 15:30:00 CET 2020
String s = "2020-11-12T6:30:00-0800";
DateFormat format = new SimpleDateFormat("yyyy-MM-dd'T'hh:mm:ssZ");
var date = format.parse(s);
System.out.println(date);
More about the patterns can be found in the JavaDoc of SimpleDateFormat.
To preserve the time zone and also moving to the new (since Java 8) api java.time you can use ZonedDateTime
ZonedDateTime date = ZonedDateTime.parse(s, DateTimeFormatter.ofPattern("yyyy-MM-dd'T'HH:mm:ssZ"));
The result then is
String s = "2020-11-12T12:00:00-0800";
ZonedDateTime date = ZonedDateTime.parse(s, DateTimeFormatter.ofPattern("yyyy-MM-dd'T'HH:mm:ssZ"));
System.out.println(date);
2020-11-12T12:00-08:00
