How do you store your user's timezone information?

[tfwright]

@sergio

Curious how you store your user’s timezone information to be able to send them an email at 12PM local time for example.

I store the timezone name (e.g. America/Chicago) in users.time_zone and use that when using Elixir DateTime functions, and they also work with postgres’s AT TIME ZONE in case you want to query users against a given time or datetime.