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

July 23, 1949 was a
Saturday

July 23, 1949 was a Saturday — that’s 28,079 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
Saturday
Day of year
204 of 365
ISO week
Week 29
Leap year?
No
Zodiac sign
Leo
Days ago
28,079

How to solve: July 23, 1949

  1. 1
    Century anchor1900s→Wednesday (3)
    Practice →
  2. 2
    Divide by 1249 ÷ 12→4
    Practice →
  3. 3
    Remainder of 1249 % 12→1
    Practice →
  4. 4
    Divide remainder by 41 ÷ 4→0
    Practice →
  5. 5
    Year's doomsday(3 + 4 + 1 + 0) % 7→1 → Monday
    Practice →
  6. 6
    Month doomsdayJuly→11th
    Practice →
  7. 7
    Distance23 − 11→12
    Practice →
  8. 8
    Final answer(1 + 12) % 7→6 → Saturday

Related dates

Day beforeJuly 22, 1949 — FridayDay afterJuly 24, 1949 — SundayOne year earlierJuly 23, 1948 — FridayOne year laterJuly 23, 1950 — Sunday
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 Saturday is often the preferred day for major sporting events worldwide?