Log files are in GMT time
How can I change my TM1 server to record log files using Local time instead of GMT?
By default, TM1 logging records all log information in GMT time.
To change your TM1 server to log information in Local time, go to your Data Directory and edit the tm1s-log.properties. in Wordpad. Look for the following section and line:
Specify GMT or Local timezone
Remove GMT and Type LOCAL in capitals and save your file.
You will not require a restart of your TM1 server service unless this file was not present in the first place. If you cannot find this file, please contact IBM Cognos support.
NOTE: Changing the log4j.appender.S1.TimeZone to LOCAL will not change what's in the actual log file on disk. This is always recorded in GMT. It does change the times to local time when you view the log file via Architect.