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August 4, 1978 was a
Friday

August 4, 1978 was a Friday — that’s 17,475 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
216 of 365
ISO week
Week 31
Leap year?
No
Zodiac sign
Leo
Days ago
17,475

How to solve: August 4, 1978

  1. 1
    Century anchor1900s→Wednesday (3)
    Practice →
  2. 2
    Divide by 1278 ÷ 12→6
    Practice →
  3. 3
    Remainder of 1278 % 12→6
    Practice →
  4. 4
    Divide remainder by 46 ÷ 4→1
    Practice →
  5. 5
    Year's doomsday(3 + 6 + 6 + 1) % 7→2 → Tuesday
    Practice →
  6. 6
    Month doomsdayAugust→8th
    Practice →
  7. 7
    Distance4 − 8→-4
    Practice →
  8. 8
    Final answer(2 + -4) % 7→5 → Friday

On this day in history

  • 1961Birth of Barack Obama

Related dates

Day beforeAugust 3, 1978 — ThursdayDay afterAugust 5, 1978 — SaturdayOne year earlierAugust 4, 1977 — ThursdayOne year laterAugust 4, 1979 — 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 Friday is often the day for high-profile music and film releases?