Updating Time Zone in ISE

[jkingsley]

Good Morning!

After performing a patch update from 2.7 patch 3 to patch 5 a couple of weeks ago, I noticed that our time zone had changed from CST to the default UTC. I started doing some research to see if it was ok to update the time zone within our ISE environment and was met with a lot of conflicting responses. I know that in the past, Cisco removed the ability to change the time zone on previous version of ISE, but have added it back in again via CLI. I even reached out to Cisco directly, and they are telling me that I have to re-image both of my nodes in order to complete the time zone change. I just can't believe that is what it takes to make a simple time zone change.

Does anyone have any advice as to whether I can change the time zone in a live environment or I need to backup, re-image, and restore?

Thanks!

[marce1000]

 - This thread (and the corresponding cisco document)  seems to confirm that you have to re-image , note that in both case an appliance is mentioned not sure whether this applies to a VM too . https://community.cisco.com/t5/network-access-control/how-can-i-change-the-timezone-on-ise-2-7/td-p/4100306  - whilst you are  add it , take care of this one, https://bst.cloudapps.cisco.com/bugsearch/bug/CSCwa00729  , very nasty, you may want to go to P6 rather quickly.

 M.

[jkingsley · Accepted solution]

Thanks for the reply!

I looked at the post that you provided already, and it is what lead me to start my own topic. In that post, you have some people saying that you have to re-image and others saying they just rebooted the appliance and it worked.

I just want to make sure that I am not harming our ISE configuration by updating the time zone and restarting the application.

I will look into getting patch 6 installed! I didn't even realize there was a new patch out already...

[marce1000]

 - If you look at the cisco-document mentioned in the thread  it seems that restarting is indeed sufficient : https://www.cisco.com/c/en/us/td/docs/security/ise/2-7/cli_guide/b_ise_CLIReferenceGuide_27/b_ise_CLIReferenceGuide_27_chapter_011.html#wp4256051829  , yet the last sentence of the Note is fuzzy.

 M.