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

June 11, 1998 was a
Thursday

June 11, 1998 was a Thursday — that’s 10,225 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
162 of 365
ISO week
Week 24
Leap year?
No
Zodiac sign
Gemini
Days ago
10,225

How to solve: June 11, 1998

  1. 1
    Century anchor1900s→Wednesday (3)
    Practice →
  2. 2
    Divide by 1298 ÷ 12→8
    Practice →
  3. 3
    Remainder of 1298 % 12→2
    Practice →
  4. 4
    Divide remainder by 42 ÷ 4→0
    Practice →
  5. 5
    Year's doomsday(3 + 8 + 2 + 0) % 7→6 → Saturday
    Practice →
  6. 6
    Month doomsdayJune→6th
    Practice →
  7. 7
    Distance11 − 6→5
    Practice →
  8. 8
    Final answer(6 + 5) % 7→4 → Thursday

Related dates

Day beforeJune 10, 1998 — WednesdayDay afterJune 12, 1998 — FridayOne year earlierJune 11, 1997 — WednesdayOne year laterJune 11, 1999 — 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 'Black Thursday' refers to several historical events that occurred on a Thursday, including a major stock market crash in 1929?