Azure web app service time zone change issue

Question

We are using azure web app service for multi tenant application. But default time zone of app service is UTC taking i want to change that time zone for that region only.

I have tried WEB_TIMEZONE variable in app setting but not working.

In general, you should not be relying on the time zone setting of the environment, but rather specifically handling time zones in your application. Take the UTC time from the server, and convert it to the desired time zone using the features of your application platform. — Matt Johnson-Pint, Feb 13 '18 at 19:45
Hate when OP asks for something and never returns. Moderators should grant the solution to @abdul-rauf — Gabriel Espinoza, Jun 28 '18 at 13:15
You can accept answer using the big checkbox. http://i.stack.imgur.com/QpogP.png — Abdul Rauf, Dec 24 '18 at 18:50

score 86 · Answer 1 · answered Jun 27 '18 at 15:15

86

You are setting wrong variable. You need to set WEBSITE_TIME_ZONE variable in Application settings. To see supported timezone values see this

To verify that whether offset is updated or not navigate to Console and execute time command

Reference: https://kvaes.wordpress.com/2017/01/24/changing-the-timezone-on-your-azure-webapp-app-service-function/

answered Jun 27 '18 at 15:15

Abdul Rauf

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@andrej how are you getting time in your java app? Ensure that particular java method that you are using is reading local time from environment. – Abdul Rauf Mar 20 '19 at 04:28
@AbdulRauf my azure appservice is in north europe region and I am getting GMT times. My user is in GMT+1 region and the logs using org.slf4j.Logger LOGGER = org.slf4j.LoggerFactory.getLogger(My.class); LOGGER.debug("Hello, world!"); are in GMT – andrej Mar 20 '19 at 16:25
@andrej have you verified using `time` command that whether timezone is updated or not? if its updated and your app is still showing time in UTC than you may need to change settings of your Logger – Abdul Rauf Mar 21 '19 at 06:01
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Just got caught out by this. I'd assumed it would by default take the timezone of the region the App Service it was based in (in my case UK West) but obviously not :) – Fetchez la vache Jul 17 '20 at 10:18
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WARNING: To reuse the UTC time, you need to set the value to empty then save ! Indeed if you delete the WEBSITE_TIME_ZONE setting parameter and save the config, the previous WEBSITE_TIME_ZONE exists still... If you delete it, you can refresh the config view to see it reappear in the configuration list. – rdhainaut Feb 16 '21 at 23:57

score 10 · Answer 2 · edited Jan 05 '21 at 20:29

10

You could add an application setting (using the portal) called WEBSITE_TIME_ZONE equal to the name of the time zone (as defined in the Windows Registry under HKEY_LOCAL_MACHINE\Software\Microsoft\Windows Nt\CurrentVersion\Time Zones\).

for example:

edited Jan 05 '21 at 20:29

Sabito stands with Ukraine

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answered Feb 13 '18 at 09:00

Jay Gong

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score 9 · Answer 3 · answered Sep 26 '19 at 00:30

9

If your App Service Plan is Linux change you need to set TZ variable in Application settings with your time zone in format like America/Sao_Paulo

Don't forget save and restart App.

Example:

List of time zones in: https://www.php.net/manual/en/timezones.php

answered Sep 26 '19 at 00:30

Wlad Neto

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Thanks. That helps with datetime in container. Although .Net core 3.1 app stills gives GMT time. – Leszek P Apr 28 '20 at 09:44
Yes, that was exactly the situation I went through. – Wlad Neto May 19 '20 at 21:03

Yorro · Answer 4 · 2021-08-16T12:05:34.780

For Asp Core, you must use the variable name WEBSITE_TIME_ZONE instead of TZ

If running on linux, use tz database name
If running on Windows, use windows server time zone

Example

+-------------------+---------------------------+------------------+
|   Variable name   |          Windows          |      Linux       |
+-------------------+---------------------------+------------------+
| WEBSITE_TIME_ZONE | AUS Eastern Standard Time | Australia/Sydney |
+-------------------+---------------------------+------------------+

El Mac · Answer 5 · 2020-05-19T11:49:13.790

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Just adding to the other answers, you can find the Default Windows Timezones here:

https://learn.microsoft.com/en-us/windows-hardware/manufacture/desktop/default-time-zones

You need to set the value contained in the column "Timezone".

edited May 19 '20 at 11:49

answered Sep 30 '19 at 22:09

El Mac

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Roger Hayashi · Answer 6 · 2020-09-03T00:28:34.667

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If you're using Linux Consumption set TZ variable in Application settings. Example:

TZ: America/Sao_Paulo

edited Sep 03 '20 at 00:28

answered Sep 02 '20 at 23:49

Roger Hayashi

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Azure web app service time zone change issue

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