What the day logo
What the Day
LearnPracticePlayDailyGuides
LearnGuidesPracticePlayDaily challengeLeaderboardAboutContactPrivacy
Copyright © 2026 Jesper Kiledal
All rights reserved
☕Buy me a coffee
What the day logo
What the Day
LearnPracticePlayDailyGuides

August 1, 1918 was a
Thursday

August 1, 1918 was a Thursday — that’s 39,393 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
213 of 365
ISO week
Week 31
Leap year?
No
Zodiac sign
Leo
Days ago
39,393

How to solve: August 1, 1918

  1. 1
    Century anchor1900s→Wednesday (3)
    Practice →
  2. 2
    Divide by 1218 ÷ 12→1
    Practice →
  3. 3
    Remainder of 1218 % 12→6
    Practice →
  4. 4
    Divide remainder by 46 ÷ 4→1
    Practice →
  5. 5
    Year's doomsday(3 + 1 + 6 + 1) % 7→4 → Thursday
    Practice →
  6. 6
    Month doomsdayAugust→8th
    Practice →
  7. 7
    Distance1 − 8→-7
    Practice →
  8. 8
    Final answer(4 + -7) % 7→4 → Thursday

On this day in history

  • 1981MTV launches
  • 2008Airbnb is founded

Related dates

Day beforeJuly 31, 1918 — WednesdayDay afterAugust 2, 1918 — FridayOne year earlierAugust 1, 1917 — WednesdayOne year laterAugust 1, 1919 — 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 in Christianity, Maundy Thursday commemorates the Last Supper of Jesus Christ with his apostles?