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Editorial Team
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Asked: 2026-05-27T03:53:06+00:00

I am getting different value for TimeZone.getDefault().getID() on different systems. For example, in case

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I am getting different value for TimeZone.getDefault().getID() on different systems.
For example, in case of Indian standard time,
On one of the system we are getting “GMT+5:30”:
while on another we are getting “Asia/Calcutta”.
We are expected to get “Asia/calcutta” strings on all machines.

Why is there an inconsistency for such behavior?

Is there any way to get consistent behavior across different systems windows/MAC?

What is the best way to get client time zone programmatically using Java?

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1 Answer

  1. Editorial Team

    It sounds like the two machines are configured differently – it’s as simple as that. For example, if your first system is Windows you may have unticked the box saying “Automatically adjust for Daylight Saving Time”.

    If you know you need Asia/Calcutta for all systems, then use that explicitly. I try to avoid using the default time zone wherever possible, to be honest. Even when I do use it, I try to use it explicitly so that it’s obvious from the code that I’m trying to use the system time zone, rather than it just being accidental.

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