What is half-mast and when should flags be flown at half mast?
When flags are to be flown at half-mast they should be two-thirds up between the top and bottom of the flagstaff with at least the height of the flag between the top of the flag and the top of the flagpole. When raising the flag it should always be hoisted right up and then lowered back down to half-mast. Likewise before it is lowered at sunset, it should first be hoisted right up and then lowered back down.