Add user time zone and use consistent rendering of date across the app #240

[tdruez]

Changes:

• The data rendering format was simplified for improved readability
  • from Jan. 27, 2025, 07:55:54 a.m. UTC
  • to Jan 27, 2025, 7:55 AM UTC
• The dates are now always rendered using this same format across the app.
• The user timezone is automatically discovered and activated to the whole app using the browser JavaScript timeZone API
• The user's automatic timezone can be overridden using the new User.timezone database field. The timezone value can be defined from the User > "Profile Settings" form. This value always takes precedence when defined.
• In case the timezone is not defined by the user, or cannot be detected from the browser, the date rendering always fallback to UTC.
• Note: all the "humanized dates" such as "Modified 23 hours ago" have the whole date syntax available in their title option, available on hovering the text with the cursor for a couple seconds.

[DennisClark]

@tdruez Everything works quite nicely as you described in Staging Starship, and I really like the hover feature on the "Modified x units ago" presentation.

I have one question though: when I set the Time Zone in my User Profile, the dropdown shows apparent duplicates in the list of Time Zones, for example "Samoa" and "Pacific" have 2 rows each and there is no obvious reason for the duplication. Any thoughts about that? There did not seem to be an actual problem when I picked one, but it's a bit weird.

[mjherzog]

@DennisClark That is just the standard timezone data

[DennisClark]

@tdruez thanks, the new improvements look ready to deploy !

[tdruez]

@DennisClark I've improved the rendering of the standard timezone list so more data is displayed.
Instead of those duplicates, you will now see:

• (GMT-08:00) Canada - Pacific
• (GMT-08:00) US - Pacific

[DennisClark]

@tdruez Great, thanks !