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August 22, 1980 was a
Friday

August 22, 1980 was a Friday — that’s 16,727 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
Friday
Day of year
235 of 366
ISO week
Week 34
Leap year?
Yes
Zodiac sign
Leo
Days ago
16,727

How to solve: August 22, 1980

  1. 1
    Century anchor1900s→Wednesday (3)
    Practice →
  2. 2
    Divide by 1280 ÷ 12→6
    Practice →
  3. 3
    Remainder of 1280 % 12→8
    Practice →
  4. 4
    Divide remainder by 48 ÷ 4→2
    Practice →
  5. 5
    Year's doomsday(3 + 6 + 8 + 2) % 7→5 → Friday
    Practice →
  6. 6
    Month doomsdayAugust→8th
    Practice →
  7. 7
    Distance22 − 8→14
    Practice →
  8. 8
    Final answer(5 + 14) % 7→5 → Friday

Related dates

Day beforeAugust 21, 1980 — ThursdayDay afterAugust 23, 1980 — SaturdayOne year earlierAugust 22, 1979 — WednesdayOne year laterAugust 22, 1981 — Saturday
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 in many cultures, Friday is considered an unlucky day, especially when it falls on the 13th of the month?