Tip: Click the free calendar ninja poster above to save the high quality version. Everyday a new design will be generated for you. Collect all 16 ninja poses.
April 4 (4/4), June 6 (6/6), August 8 (8/8), October 10 (10/10), December 12 (12/12), and the last day of February always fall on the same day of the week in any given year. This is called the ‘Doomsday rule’. Check these dates using the full 12-month calendar below to verify.
Calendar
January
S
M
T
W
T
F
S
February
S
M
T
W
T
F
S
March
S
M
T
W
T
F
S
April
S
M
T
W
T
F
S
May
S
M
T
W
T
F
S
June
S
M
T
W
T
F
S
July
S
M
T
W
T
F
S
August
S
M
T
W
T
F
S
September
S
M
T
W
T
F
S
October
S
M
T
W
T
F
S
November
S
M
T
W
T
F
S
December
S
M
T
W
T
F
S
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