FED:-
Didn't you us the decimalised compass in those days?
Ah yes, and memories of the decimalisation of DTGs as well.
It must have been in the late 60s when the teleprinters sprang into life immediately after midnight of 31 March. It reminded all recipients that iaw NATO Stanag xxxx, decimalisation of time was to take immediate effect from Apr 0100.01. Cpls in Comm Cens awoke OOs who then woke SDOs who then woke up Stn Nav Officers. Stn Duty Ops officers denied all previous knowledge. By the time that Wg Cdrs were being aroused the penny had usually dropped, and attention turned to the date and origination of the signal. The first was not IAW with the supposed Stanag, the second of course had long since gone to earth.