There is, when you aggregate your data to create graphs such as "My most active hours", you will have a problem if your user moves between timezones, if you did

There is, when you aggregate your data to create graphs such as "My most active hours", you will have a problem if your user moves between timezones, if you did not store the actual local wall time. [0] For those cases, you can store the offset or the denormalized local time along with the UTC version. [0] https://blog.nytsoi.net/2022/03/13/utc https://blog.nytsoi.net/2022/03/13/utc