(historical) 1 March 1946, the planned date for the Allied invasion of the Kantō Plain to conquer Tokyo in World War II (cancelled following Japan's unconditional surrender in September 1945).

plural of T-Day

Short for at the end of the day.

(Maine) Alternative form of Patriots' Day

plural of day cream

(cosmetics) A moisturizing cream to be applied and worn during the day.

Alternative form of raceday

plural of race day

Designating the release of a film on multiple platforms, most commonly theatrical and home video, on the exact same day, or in very close proximity to each other.

plural of Labour Day