TimeZone of UTC+5:30

[sshikalgar]

val localDateTime = Clock.System.now().toLocalDateTime(TimeZone.of("UTC+5:30"))
above code is not working I try to use +5:30 but work fine if I used +5. How can I fetch time for +5:30 GMT?

error I received:

Uncaught Kotlin exception: kotlinx.datetime.IllegalTimeZoneException: Invalid ID for ZoneOffset, non numeric characters found: +5:30

[dkhalanskyjb]

UTC+05:30 should work (note the leading zero).

That said, a reminder is in order that using fixed-offset time zones (probably aside from UTC) is very rarely what one actually needs; instead, in the majority of cases, region-based time zones, like TimeZone.of("Asia/Kolkata") or TimeZone.of("Asia/Colombo"), should be used to make the code more reliable in case of future changes to the time zones.

[sshikalgar]

Hi, @dkhalanskyjb

I have already tried for "Asia/Kolkata"

val localDateTime = Clock.System.now().toLocalDateTime(TimeZone.currentSystemDefault())

Uncaught Kotlin exception: kotlinx.datetime.IllegalTimeZoneException: No timezone found with zone ID 'Asia/Kolkata'

[dkhalanskyjb]

Huh, this is a bug. What platform does this happen on?

[sshikalgar]

I am using Xcode 12.4 and Simulator to test iosApp project

[dkhalanskyjb]

I see, thanks! This looks like a duplicate of #94, and if so, the issue is fixed in the current master. So, I would suggest either using the code from the master branch or sticking to the +05:30 solution until the next release of our library.

[sshikalgar]

I see, thanks! This looks like a duplicate of #94, and if so, the issue is fixed in the current master. So, I would suggest either using the code from the master branch or sticking to the +05:30 solution until the next release of our library.

+05:30 also won't work as I have mentioned in my first comment.

[dkhalanskyjb]

In the first comment, you talked about +5:30, not +05:30 (with the zero), right? +05:30 should work.

[dkhalanskyjb]

The TimeZone.currentSystemDefault() issue does not reproduce for me for 0.2.0. Feel free to reopen this issue if the problem persists!

[vymarkov]

Unfortunately, using a literal name for timezones like "Asia/Colombo" in the code leads to an IllegalTimeZoneException when targeting the JavaScript platform.

TimeZone.of("Asia/Colombo")

for IOS/Android platforms it works fine

[dkhalanskyjb]

@vymarkov , please see https://github.com/Kotlin/kotlinx-datetime?tab=readme-ov-file#note-about-time-zones-in-js