Its the same at Health centres and such. Everything closes at least 15 minutes before the 'closing time' given on the doors. So in Qatar, the rule is... if it closes at 7pm... get there earlier than the 15 minutes before. 6.44pm will be OK... but 6.46 will not ! It just take a bit of getting used to the system.

Of course, someone in Management could always post this explanation on the door... but that is too much like organisation! Chaos must reign for everything to run smoothly.
Angelwings.

If the grass is greener on the other side, its sure the water bill is higher !