With the beginning the lengthening days the Government decided to put clocks forward by an hour.  The change to summer time took place on the night of 25^th-26^th March 2015. Yesterday, the Government decided to put the clocks back one hour, as the days shorten. This will take place on the night of 25^th-26^th September. In other words, at midnight on 25^th September, you should change your time to 23.00pm.