I am trying to create a first Docker user template, for s1t5/mail-archiver. One of the variables is the timezone, TZ identifier. I was wondering if the server's timezone could be pushed to the container? So the user does not have to type it in manually.

Thanks in advance for any pointers.

39 minutes ago, Emphyrio said:

I was wondering if the server's timezone could be pushed to the container?

It already is by default.

Is there any documentation about this? How can the container developer pick it up?

The standard TZ variable. As you can see anytime a container is added/edited the run command contains it.

If they decided to require a different variable then I'm not sure how to reference the existing one.

Edited September 28, 2025Sep 28 by Kilrah

8 minutes ago, Emphyrio said:

Is there any documentation about this? How can the container developer pick it up?

you install the package tzdata into the image and thats it

Edit: (just to mention it for completenes sake, unraid passes as TZ whatever your timezone on the server is set on)

Edited September 28, 2025Sep 28 by Mainfrezzer

Thanks people, I passed the information along.