fix broken tests
 - each database (local mac, local docker, aws) handles timestamps with time zones differently
 - the big trouble was the change where timezone was dropped from event & reg start and end time
 - some DBs put it in w/ offset UTC, others EST
 - this means a test would pass in one environment, but fail in another
 - this change just puts the date/time w/o offset in the fields we're checking.
 - we're not going to make this change again, so it's safe to make this update