Canadian Holiday;

1) The last Monday in May on which we get the day off 'cause it was Queen Victoria's birthday like a thousand years ago, whoever she was. Now called 'May two-four'

2) The official start of Canadian summer.

3) The day Canadians drink beer and clean out/open their swimming pools. (weather permitting)

4) a day off at the end of May. The Monday or Friday closest to the 24th, sometimes both.