call logs and multiple user/time zones

I have several “users” in different time zones across the US and each user is set to their specific time zone in the user details ->settings and permissions ->regional settings. When I review the call logs, all calls are time stamped to the east coast (I am unclear if that is due to my corporate HQ location or my own user location, both east coast). How can I pull call logs so that calls are time stamped in accordance to when they were received at their respective time zones?