At 01:00 GMT on Sunday 29th Mar 2020 clocks were advanced 1 hour to 02:00 BST, time zone Alpha. (We don’t do UTC on this site.)
Clocks will remain on Alpha time until 01:00 on Sunday 25th October 2020 when they will be retarded to GMT time zone Zulu.
If you need to check your timepiece have a look HERE for a BST clock.