Thanks! For Azure app service on linux you need to set TZ variable in Application settings.
Once saved you, you can check this by opening SSH session.
You may refer this blog from here might be helpful: How to change TimeZone in Azure App Service? | credit: Sajee
Let us know if you have further query or issue remains.
Just checking in to see if the below answers helped. If this answers your query, do click “Accept Answer” and Up-Vote for the same. And, if you have any further query do let us know.