Calendar Reasoning - Intermediate-Advanced Level: weekday determination INTERMEDIATE-ADVANCED

This fundamentals focus worksheet contains 20 intermediate-advanced-level calendar reasoning problems. Worksheet 21 of 30 focuses on weekday determination. Practice calendar cycles, Gregorian calendar, historical dates with our step-by-step solutions. Difficulty: advanced concepts with increasing complexity. Recommended for advanced developing learners.

📝 Worksheet 21 of 30 • 20 questions • ⏱️ Estimated time: 20 minutes • 🎯 Intermediate-advanced level

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Worksheet 21 of 30 (70% complete)

Question 1

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

Question 2

If 25-10-2015 is a Sunday, what day is 24-10-2016?
365 days later: day shifts by 1 days. Sunday + 1 days = Monday.

Question 3

In 2050, on which date does Easter Sunday fall?
Easter Sunday in 2050 falls on April 10.

Question 4

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 5

A code says: 24/9 = Wednesday. What does 24/10 equal? (Use same year)
Next month same date: calculated day_name(24,10,2025)=Friday.

Question 6

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 7

In the following calendar grid for January 2029, how many Sundays are there? Mon Tue Wed Thu Fri Sat Sun 1 | 2 | 3 | 4 | 5 | 6 | 7 8 | 9 | 10 | 11 | 12 | 13 | 14 15 | 16 | 17 | 18 | 19 | 20 | 21 22 | 23 | 24 | 25 | 26 | 27 | 28 29 | 30 | 31 | | | |
In January 2029, Sundays fall on: 7, 14, 21, 28. Total: 4.

Question 8

If 1 January 2019 was a Tuesday, what day was 1 May 2019?
Calculated via Zeller's congruence: 1/5/2019 falls on Wednesday.

Question 9

In 2022, on which date does Easter Sunday fall?
Easter Sunday in 2022 falls on April 17.

Question 10

If 1 January 2022 was a Saturday, what day was 1 May 2022?
Calculated via Zeller's congruence: 1/5/2022 falls on Sunday.

Question 11

A code says: 10/1 = Friday. What does 10/2 equal? (Use same year)
Next month same date: calculated day_name(10,2,2025)=Monday.

Question 12

In the following calendar grid for August 2024, how many Saturdays are there? Mon Tue Wed Thu Fri Sat Sun | | | 1 | 2 | 3 | 4 5 | 6 | 7 | 8 | 9 | 10 | 11 12 | 13 | 14 | 15 | 16 | 17 | 18 19 | 20 | 21 | 22 | 23 | 24 | 25
In August 2024, Saturdays fall on: 3, 10, 17, 24. Total: 4.

Question 13

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 14

If 03-03-2016 is a Thursday, what day is 03-03-2018?
730 days later: day shifts by 2 days. Thursday + 2 days = Saturday.

Question 15

How many days did February have in the year 2014?
Year 2014 had 28 days in February.

Question 16

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

Question 17

How many days did February have in the year 2029?
Year 2029 had 28 days in February.

Question 18

If 07-01-2020 is a Tuesday, what day is 06-01-2021?
365 days later: day shifts by 1 days. Tuesday + 1 days = Wednesday.

Question 19

After how many years will the calendar for 1831 repeat exactly?
The calendar for 1831 repeats after 11 years because the day pattern and leap year cycle align.

Question 20

After how many years will the calendar for 1935 repeat exactly?
The calendar for 1935 repeats after 11 years because the day pattern and leap year cycle align.
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