This is a twist on words of Greenwich Mean Time which defines
many Gambian's notoriously bad time keeping i.e. nearly
always late for an appointment. If you agree to meet someone at
for example 10am in the morning they will most probably turn up
at 11 or 12 am if they bother to turn up at all!
One tip is to call an individual before departing to meet them
at the appointed hour or else request that they call you by phone
when they are on their way.
If you are going to meet someone at their office then do make
contact with them by phone just before you depart as they may
have gone off on another errand or attending some kind of unscheduled
ceremony that morning.