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July 21, 1968 was a
Sunday

July 21, 1968 was a Sunday — that’s 21,141 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
Sunday
Day of year
203 of 366
ISO week
Week 29
Leap year?
Yes
Zodiac sign
Cancer
Days ago
21,141

How to solve: July 21, 1968

  1. 1
    Century anchor1900s→Wednesday (3)
    Practice →
  2. 2
    Divide by 1268 ÷ 12→5
    Practice →
  3. 3
    Remainder of 1268 % 12→8
    Practice →
  4. 4
    Divide remainder by 48 ÷ 4→2
    Practice →
  5. 5
    Year's doomsday(3 + 5 + 8 + 2) % 7→4 → Thursday
    Practice →
  6. 6
    Month doomsdayJuly→11th
    Practice →
  7. 7
    Distance21 − 11→10
    Practice →
  8. 8
    Final answer(4 + 10) % 7→0 → Sunday

On this day in history

  • 1899Birth of Ernest Hemingway

Related dates

Day beforeJuly 20, 1968 — SaturdayDay afterJuly 22, 1968 — MondayOne year earlierJuly 21, 1967 — FridayOne year laterJuly 21, 1969 — Monday
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 Sunday roast is a traditional British meal typically served on Sundays?