Reminds me of an app I worked on a while ago where both the server it was running on and the datetimes in the database had to be in a specific time zone. Change

Reminds me of an app I worked on a while ago where both the server it was running on and the datetimes in the database had to be in a specific time zone. Change either (including changing both to an identical but different TZ) and the app just failed to run.