1400 GMT (2 o'clock in old money) is 1500 BST, rosalind.
I sympathise though - I really don't understand the clock/time changing thing and am more likely to get it right by flipping a coin rather than working it out (I have at least twice persuaded my wife to get up two hours earlier than necessary when the clocks changed - trouble is, I can't remember if that was Spring or Autumn!)