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.
Can you guess my birthday in just 6 tries? 🥳🎉 Give it a shot and see if you can crack the code! 🎂🎈 Play the Birthday Challenge here.
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
Think you’re a pro at guessing birthdays? 🎁 Test your skills with our twist on the popular Wordle game! 🥳🎂 Play the Birthday Challenge if you have nothing to do.
