TB meet-ups & summer time start differences

Note we’re in that time when US and European (and possibly other) time zones are out of synch. The US (North American?) time zones moved to summer time end of Sun 10 March and Europe (both GMT & CET) move end of Sun 31 Mar. So for meet-ups it is worth those attending double-checking the ‘core’ time and their local offset during this few weeks. Same in the Autumn. Grr.