But on ASDM ?

My 5506 is at home and I don't have it in front of me to verify. The User Guide for that doesn't mention it so it might not be separately configurable. In that case it would pick it up from the ASA.

Have you set the timezone of the base ASA to your desired setting? (Configuration > Device Setup > System Time > Clock)

Yes, the base asa is at the right timezone.

I suppose it is a bug. I got the same problem. The fact is when you change the time by (further is an example) ln -sf /usr/share/zoneinfo/Europe/Moscow /etc/localtime and when you add in  /etc/sysconfig/clock

ZONE="Europe/Moscow"

UTC=true

the output of the date command and hwclock command is correct, but

logs in ASDM still show UTC.

On the very ASA time and zone settings are correct and the very ASA's ASDM show correct (Moscow) time.

I'd like to ask (it is a bit offtopic here) - I have the control and protection license on cisco ASA 5506-x and everything works with access policies but user awareness.

I have set up User Agent on windows 7 workstation, it sees Domain Controller and according to logs it polls logs from it, and sends info to ASA firepower (logs tell that "Reported Heartbeat from windows 7 wks to ip of Firepower module"). Also I have set up through ASDM user agent on ASA Firepower. But asa firepower report on dashboard says that user information is unavailable and of course no blocking user traffic from the host where user is logged on according to AccessPolicy (LDAP connection is succesfully set up).

I have spent a week with troubleshooting  - no success.

I poked around in my home ASA 5506X. No joy in setting the FirePOWER module time in the ASDM GUI.

However, it appears you can change it in the Linux shell if you really want to. the time is set via a symbol link from the timezone file to /etc/localtime.

Mine was set at UTC by default and I changed it to GMT-5 as follows:

Xshell:\> ssh admin@192.168.1.254

Connecting to 192.168.1.254:22...
Connection established.
To escape to local shell, press 'Ctrl+Alt+]'.

Last login: Thu Jul  2 16:09:38 2015

Copyright 2004-2015, Cisco and/or its affiliates. All rights reserved. 
Cisco is a registered trademark of Cisco Systems, Inc. 
All other trademarks are property of their respective owners.

Cisco Linux OS v5.4.1 (build 12)
Cisco ASA5506 v5.4.1 (build 211)

> 
> expert
admin@Sourcefire3D:~$ 

admin@Sourcefire3D:/etc/sysconfig$ date
Thu Jul 16 20:16:54 UTC 2015
admin@Sourcefire3D:/etc$ sudo ln -sf /usr/share/zoneinfo/Etc/GMT-5 /etc/localtime

We trust you have received the usual lecture from the local System
Administrator. It usually boils down to these three things:

    #1) Respect the privacy of others.
    #2) Think before you type.
    #3) With great power comes great responsibility.

Password: 
admin@Sourcefire3D:/etc$ date 
Fri Jul 17 01:26:17 GMT-5 2015
admin@Sourcefire3D:/etc$ 

I tryed with

sudo ln -sf /usr/share/zoneinfo/Etc/GMT+1 /etc/localtime

Date command show GMT+1 (Denmark)

I still get a warning on the reporting page in ASDM

"time range was adjustet to align with report data"

The time shown on the page is "Fri 17 Jul 2015, 2:35 PM (UTC)"

And the ASA time is 17:35

Hmm. It could be either a bug or just that neither of us understands it well enough.

If the unit has Smartnet perhaps you could open a TAC case on it.

No smartnet, its my demo unit.

A serious bug that it is impossible to set the time zone from ASDM.

There are also missing the possibility to change the admin password.

I cant be the only one with this problem.

How about an update that makes i possible from ASDM ?