What day of the week was January 18, 1942?

January 18, 1942 was a Sunday. You can work it out in your head with the Doomsday algorithm — this page shows the full step-by-step calculation.

January 18, 1942 was a
Sunday

January 18, 1942 was a Sunday — that’s 30,871 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

Sunday

Day of year

18 of 365

ISO week

Week 3

Leap year?

Zodiac sign

Capricorn

Days ago

30,871

How to solve: January 18, 1942

1
Century anchor1900s→ Wednesday (3)
Practice →
2
Divide by 1242 ÷ 12→ 3
Practice →
3
Remainder of 1242 % 12→ 6
Practice →
4
Divide remainder by 46 ÷ 4→ 1
Practice →
5
Year's doomsday(3 + 3 + 6 + 1) % 7→ 6 → Saturday
Practice →
6
Month doomsdayJanuary→ 3rd
Practice →
7
Distance18 − 3→ 15
Practice →
8
Final answer(6 + 15) % 7→ 0 → Sunday

Now you try

Same month, one different day. You already know January 3 is a doomsday — count from there.

January 29, 1942

Do this for any date, without looking it up

The Doomsday algorithm is six short steps. Most people get to a reliable answer in under 30 seconds after an afternoon of practice.

Learn the algorithm Play today’s challenge

Did you know? Did you know that in astrology, Sunday is associated with the Sun, symbolizing vitality and leadership?

January 18, 1942 was aSunday

How to solve: January 18, 1942

Now you try

Do this for any date, without looking it up

January 18, 1942 was aSunday

How to solve: January 18, 1942

Now you try

Do this for any date, without looking it up

January 18, 1942 was a
Sunday

January 18, 1942 was a
Sunday