At the moment an Event looks like this:

The thing is, Phorge/Phabricator has a really robust absolute time support, storing everything as Unix timestamps and showing every date in a very handy way following user preferences, but that could be somehow clarified from the web interface.

The root issue is:

Event organizers (but also Event participants) don't have a quick way to say to their international friends "This event starts at 10:00 AM UTC+2" since "UTC+2" is not an information that can be assumed from an Event page.

Proposal n. 1:

Improve the dates so that when you put the mouse over it, it says the timezone (your timezone from your user preferences).

Proposal n. 2:

Improve the phrase in the Event header. Example from/to:

• "Hosted by <user> on Mon, May 22, 18:00 - 19:00."
• "Hosted by <user> on Mon, May 22, 18:00 - 19:00, Europe/Rome" (← Your user preferences)