Often users will want to see timezones in their "local" timezone (as defined by browser), but there are useful cases when they would want to be able to view times in other timezones.
We should have "dropdown"/selection mechanism that lets the user choose:
- Browser local (the default probably)
- Ariflow server configured TZ (if it's not UTC)
Possibly we should also have "DAG timezone" for any dag-specific page, when that DAG is set to use a different TZ
And then for flexability (and if it's not loads of work) let the user select any arbitrary timezone ("America/New York", or "Europe/Paris" for instance) from a list.
The user's chosen TZ should be stored in a cookie (don't think it's necessary to store this server side if all the translation is being done client side.)
It might be useful to have a "quick toggle" between local and what ever other setting is set.