Time was on UTC
Time did not change to summer time
Time was changed to London time
Time automatically added 1 hour summer time
But:
All calendar events changed
every event started one hour later and finished one hour later than scheduled
Had to changed calendar events back to correct time, one by one
Time was on UTC
Time did not change to summer time
Time was changed to London time
Time automatically added 1 hour summer time
But:
All calendar events changed
every event started one hour later and finished one hour later than scheduled
Had to changed calendar events back to correct time, one by one