1st March = Saint Davids Day Gavin.
60 Minutes in a Degree
One Man's Loss is Another Man's Gain
Millimetres in a Yard
4 S in a Q
2359 One Minute to Midnight (23:59)
15 Men on a Dead Mans Chest
The ditloid "24 D in W H C the M" stands for "24 hours in a day, which has a meaning." It references the number of hours in a full day.
Days in Every Month
It's a Ditloid. 180 Maximum Score in Darts.
to convert 5 meters to centameters? if 1 meter equals 100 cm, then 5 meters equals 500 cm
10 (Movie with) Bo Derek and Dudley Moore
1 Moon of the Earth, possibly