Pr nagbot

> will it change depending on the TZ set on the server

It will although (IIRC) Heroku runs UTC. In this case Bebot already juggles with timezones [here](https://github.com/mezis/bebot/blob/master/bebot/config/time.rb#L6) and [here](https://github.com/mezis/bebot/blob/master/bebot/models/comparator.rb#L35) (explicitely setting the Ruby timezone), so it might be wise to do the same thing (setting the zone in the schedule file).