Calendar Reasoning - Beginner-Intermediate Level: calendar cycles BEGINNER-INTERMEDIATE

Quick intensive drill ★ session: 20 beginner-intermediate-level calendar reasoning questions. Worksheet 7 of 30 - Focus: calendar cycles. Practice calendar cycles, Gregorian calendar, historical dates with instant feedback. Great for developing students needing building on fundamentals with moderate challenges practice.

📝 Worksheet 7 of 30 • 20 questions • ⏱️ Estimated time: 20 minutes • 🎯 Beginner-intermediate level

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Worksheet 7 of 30 (23% complete)

Question 1

If 23-09-2016 is a Friday, what day is 23-10-2016?
30 days later: day shifts by 2 days. Friday + 2 days = Sunday.

Question 2

If 1 January 2021 was a Friday, what day was 1 July 2021?
Calculated via Zeller's congruence: 1/7/2021 falls on Thursday.

Question 3

If 1 January 2020 was a Wednesday, what day was 1 February 2020?
Calculated via Zeller's congruence: 1/2/2020 falls on Saturday.

Question 4

If the day after tomorrow is not Wednesday, which day CANNOT be today?
If today were Monday, then day after tomorrow would be Wednesday, which contradicts the condition.

Question 5

How many odd days are there in 52 years starting from 1837? (Note: Odd days = remainder when total days are divided by 7)
Total days = 39×365 + 13×366 = 18993 days. Odd days = 18993 mod 7 = 2.

Question 6

If 1 January 2019 was a Tuesday, what day was 1 June 2019?
Calculated via Zeller's congruence: 1/6/2019 falls on Saturday.

Question 7

If 1 January 2019 was a Tuesday, what day was 1 April 2019?
Calculated via Zeller's congruence: 1/4/2019 falls on Monday.

Question 8

How many odd days are there in 52 years starting from 1853? (Note: Odd days = remainder when total days are divided by 7)
Total days = 40×365 + 12×366 = 18992 days. Odd days = 18992 mod 7 = 1.

Question 9

How many days did February have in the year 2009?
Year 2009 had 28 days in February.

Question 10

If today is Thursday and tomorrow is Friday, what day was yesterday?
Using day relationships: If today is Thursday and tomorrow is Friday, what day was yesterday? Wednesday

Question 11

In England, when switching from the Julian to the Gregorian calendar in 1752, September 2 (Julian) was followed directly by which date in the Gregorian calendar?
England switched to the Gregorian calendar after 2 September 1752, skipping 11 days to align with the solar year. Therefore, 3 September became 14 September.

Question 12

In 2030, on which date does Easter Sunday fall?
Easter Sunday in 2030 falls on April 21.

Question 13

If today is Sunday and tomorrow is Monday, what day was yesterday?
Using day relationships: If today is Sunday and tomorrow is Monday, what day was yesterday? Saturday

Question 14

If 24-12-2020 is a Thursday, what day is 07-01-2021?
14 days later: day shifts by 0 days. Thursday + 0 days = Thursday.

Question 15

After how many years will the calendar for 1837 repeat exactly?
The calendar for 1837 repeats after 6 years because the day pattern and leap year cycle align.

Question 16

In 2018, on which date does Easter Sunday fall?
Easter Sunday in 2018 falls on April 1.

Question 17

If tomorrow is not Friday, which day CANNOT be today?
If today were Thursday, then tomorrow would be Friday, which contradicts the condition.

Question 18

How many odd days are there in 400 years starting from 1834? (Note: Odd days = remainder when total days are divided by 7)
Total days = 303×365 + 97×366 = 146097 days. Odd days = 146097 mod 7 = 0.

Question 19

How many days did February have in the year 2004?
Year 2004 had 29 days in February.

Question 20

A code says: 10/5 = Saturday. What does 10/6 equal? (Use same year)
Next month same date: calculated day_name(10,6,2025)=Tuesday.
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