Calendar
8 questions · EasyMediumHard
Calendar questions find the day of the week for a date. The key idea is odd days: the remainder when a number of days is divided by 7.
💡 Quick tricks
- An ordinary year has 1 odd day, a leap year 2.
- Count the days between two dates, divide by 7, and move forward by the remainder.
- Century years are leap years only if divisible by 400: 2000 was, 1900 wasn't.
🎯 Try it yourself
Tap an answer. You'll see if it's right, and why. Easy ones come first.
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Q1Easy
23 Jun 2021 falls on a Wednesday. Which day does 18 Jul 2021 fall on?
Show answer
Answer: D. Sunday
💡 25 days later: 25 mod 7 = 4, so move 4 day(s) forward from Wednesday to Sunday.
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Q2Easy
7 Dec 2025 falls on a Sunday. Which day does 2 Jan 2026 fall on?
Show answer
Answer: D. Friday
💡 26 days later: 26 mod 7 = 5, so move 5 day(s) forward from Sunday to Friday.
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Q3Easy
6 Aug 2020 falls on a Thursday. Which day does 11 Aug 2020 fall on?
Show answer
Answer: C. Tuesday
💡 5 days later: 5 mod 7 = 5, so move 5 day(s) forward from Thursday to Tuesday.
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Q4Medium
2 Sep 2026 falls on a Wednesday. Which day does 25 Nov 2026 fall on?
Show answer
Answer: D. Wednesday
💡 84 days later: 84 mod 7 = 0, so move 0 day(s) forward from Wednesday to Wednesday.
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Q5Medium
13 Sep 2022 falls on a Tuesday. Which day does 28 Oct 2022 fall on?
Show answer
Answer: C. Friday
💡 45 days later: 45 mod 7 = 3, so move 3 day(s) forward from Tuesday to Friday.
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Q6Medium
7 Nov 2024 falls on a Thursday. Which day does 5 Jan 2025 fall on?
Show answer
Answer: C. Sunday
💡 59 days later: 59 mod 7 = 3, so move 3 day(s) forward from Thursday to Sunday.
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Q7Hard
12 Jan 2027 falls on a Tuesday. Which day does 12 Jan 2028 fall on?
Show answer
Answer: B. Wednesday
💡 365 days later: 365 mod 7 = 1, so move 1 day(s) forward from Tuesday to Wednesday.
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Q8Hard
23 Apr 2030 falls on a Tuesday. Which day does 23 Apr 2032 fall on?
Show answer
Answer: A. Friday
💡 731 days later: 731 mod 7 = 3, so move 3 day(s) forward from Tuesday to Friday.
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