HC Deb 01 July 1919 vol 117 c790W

asked the Undersecretary of State to the Air Ministry whether the system of numbering the hours continuously up to 24, which was adopted in the Army last year, has also been adopted in the Royal Air Force; and, if so, from what date and under what Regulation?

Major-General SEELY

The system in question was adopted throughout the Royal Air Force from midnight 19th/20th October, 1918, under Air Ministry Weekly Order No. 1,232, dated the 10th October, 1918.