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August 23, 1985 was a
Friday

August 23, 1985 was a Friday — that’s 14,900 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 365
ISO week
Week 34
Leap year?
No
Zodiac sign
Virgo
Days ago
14,900

How to solve: August 23, 1985

  1. 1
    Century anchor1900s→Wednesday (3)
    Practice →
  2. 2
    Divide by 1285 ÷ 12→7
    Practice →
  3. 3
    Remainder of 1285 % 12→1
    Practice →
  4. 4
    Divide remainder by 41 ÷ 4→0
    Practice →
  5. 5
    Year's doomsday(3 + 7 + 1 + 0) % 7→4 → Thursday
    Practice →
  6. 6
    Month doomsdayAugust→8th
    Practice →
  7. 7
    Distance23 − 8→15
    Practice →
  8. 8
    Final answer(4 + 15) % 7→5 → Friday

Related dates

Day beforeAugust 22, 1985 — ThursdayDay afterAugust 24, 1985 — SaturdayOne year earlierAugust 23, 1984 — ThursdayOne year laterAugust 23, 1986 — 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 'Black Friday' refers to the day after the U.S. Thanksgiving, which marks the beginning of the Christmas shopping season?