At user creation set different default timezone When a new user applies for an account, how does one set the timezone default from 'America/Denver' to 'UTC' timzeone?  It's ok to allow the user to change the timezone to a preferred timezone.  However, most of my users will be signing up from the UK.  Is there a way to set the default to UTC rather than America/Denver?
Try visiting admin/config/regional/settings to set default timezones.

I've also created a module called Timezone Detect that will detect and set user timezones automatically using javascript.