It's under Look and Layout Preferences under Profile / Modify Profile.
Direct link for you to offset for your time zone is https://forum.gaytorrent.ru/index.php?action=profile;u=553576;sa=theme (you can input the difference or click to autodetect).
Have not noticed that this setting varied when I was told to go to bed or that I'm awesome. Still waiting for it to acknowledge the entire time spectrum and stating I'm awesome in bed.