Question:
I changed the Time Zone from -4 to -7 to reflect Pacific time, but the audit trail times still show ET. Why doesn't the Time Zone update?
Answer:
Since Time Zone is a database setting that is used really frequently, it gets cached so we can access it faster during runtime. That also means it takes a while to update after it changes. Cache expiration for that setting is set to 1 hour in production, which means once an hour it reloads that setting from the database into cache. After you change that setting, it'll refresh and start using the new value in at most one hour (but usually less time than that).