This is Noel Coward's song. I am away from home, but if no one else posts this in the next while, I will. There are lots of verses, only few I remember accurately. It begins:

In tropical climes there are certain times of day, when all the citizens retire to tear their clothes off and perspire, it's one of those rules that the biggest fools obey, but though the English are effette, they're quite impervious to heat -- MAD DOGS AND ENGLISHMEN GO OUT IN THE NOONDAY SUN.

In the mangrove swamps where the python romps, there is peace from twelve till two, even caribous lie down and snooze, for there's nothing else to do, but...

In Rangoon, at the stroke of noon, they fire off the midday gun to reprimand each inmate whos in late...

The best, longest version is on the Noel Coward in Las Vegas album.