You may NOT log 'Hobbs' time in a UK personal logbook! Whereas the hire of the aircraft may be charged by using 'Hobbs time', the flight time in a personal logbook MUST be recorded as 'from the time the aircraft first moves under its own power for the intention of taking off (i.e. 'chocks away') to the time of completion of the normal taxying process after landing (i.e. 'chocks under')'. Anyone logging 'Hobbs time' has not recorded their flight time in the required manner.
Decimal time - OK for thickos who never learned how to add up hours and minutes perhaps, but for the rest of us it has no relevance.
[ 02 November 2001: Message edited by: BEagle ]