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August 15, 1940 was a
Thursday

August 15, 1940 was a Thursday — that’s 31,344 days ago. Below you can see exactly how to work the weekday out in your head with the Doomsday algorithm, along with a few other facts about the date.

Weekday
Thursday
Day of year
228 of 366
ISO week
Week 33
Leap year?
Yes
Zodiac sign
Leo
Days ago
31,344

How to solve: August 15, 1940

  1. 1
    Century anchor1900s→Wednesday (3)
    Practice →
  2. 2
    Divide by 1240 ÷ 12→3
    Practice →
  3. 3
    Remainder of 1240 % 12→4
    Practice →
  4. 4
    Divide remainder by 44 ÷ 4→1
    Practice →
  5. 5
    Year's doomsday(3 + 3 + 4 + 1) % 7→4 → Thursday
    Practice →
  6. 6
    Month doomsdayAugust→8th
    Practice →
  7. 7
    Distance15 − 8→7
    Practice →
  8. 8
    Final answer(4 + 7) % 7→4 → Thursday

On this day in history

  • 1947Independence of India
  • 1969Woodstock Festival begins

Related dates

Day beforeAugust 14, 1940 — WednesdayDay afterAugust 16, 1940 — FridayOne year earlierAugust 15, 1939 — TuesdayOne year laterAugust 15, 1941 — Friday
Want to be able to do this for any date in seconds? Read the guide or practice the algorithm.
Did you know? Did you know that 'Black Thursday' refers to several historical events that occurred on a Thursday, including a major stock market crash in 1929?