As of today, UTC is the same time as GMT. That will change at the end of the month. But for now, the times listed in this post are correct. Changes will be updated.
London is now GMT. GMT is currently the same as UTC. Therefore,
Hartford, Connecticut is UTC minus 4 hours.
Los Angeles, California is UTC minus 7 hours.
Nijmegen, Netherlands is UTC plus 1 hour.
Perth, Australia is UTC plus 9 hours