[niallc]

Hi

My understanding is that British time varied during the war between GMT and British Double Summer time (GMT +2 hrs) while German time varied between Central European time (GMT +1) and German Summer time (GMT +2).

For the 44-45 period UK Local time changed as follows:
2 April 44 - 17 September 44 BDST
17 September 44 - 2 Apr 45 BST
2 April 45 - 15 July 45 BDST

German local time changed as follows:
3 April 44 - 2 October 44 GST
2 October 44 - 2 April 45 CET
2 April 45 - 18 November 45 GST

All changes made at 0200 hrs on the date given.

You can see from this that for most of the period both sides were on the same local time (GMT + 2), the exception being 17 September 44-2 October 44, when the RAF were on BST (GMT + 1) while the Germans stayed on GST (GMT + 2).

Hope this helps
NiallC