Calendar Problems - Beginner Level: leap year calculations BEGINNER

Master calendar problems concepts through this speed drill practice set. Worksheet 6 of 30 contains 20 beginner-level problems. Deep dive into leap year calculations while learning leap year calculations, calendar arithmetic, date finding. Recommended for entry-level learners aiming for foundational concepts and basic patterns.

📝 Worksheet 6 of 30 • 20 questions • ⏱️ Estimated time: 20 minutes • 🎯 Beginner level

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Worksheet 6 of 30 (20% complete)

Question 1

In which ISO week does 03 February 2007 fall? (Note: ISO week definition - Monday start, week 1 contains first Thursday)
ISO week number is calculated with Monday as the first day of week, and week 1 is the week containing the first Thursday. 03-02-2007 is in week 5.

Question 2

Which years before and after 2089 have the exact same calendar as 2089?
Previous: 2078, Next: 2095

Question 3

How many days are there in September 2007?
September 2007 has 30 days.

Question 4

How many Wednesdays are there in December 2021?
December 2021 has 5 Wednesdays

Question 5

How many days are there between 28 March 2025 and 28 June 2025?
The difference between 28 March 2025 and 28 June 2025 is 92 days

Question 6

What is the date of the 5th Friday in October 2021?
The Fridays in October 2021 fall on: 1, 8, 15, 22, 29. The 5th one is 29.

Question 7

What day of the week was 17 June 2013?
Using Zeller's congruence: 17/6/2013 = Monday

Question 8

What day of the week was 25 April 2029?
Using Zeller's congruence: 25/4/2029 = Wednesday

Question 9

If someone was born on 4 December 1991 (a Wednesday), what day of the week will their birthday be in 2030?
The birthday 4 December 2030 falls on a Wednesday.

Question 10

What is the date of the 1st Tuesday in July 2013?
The 1st Tuesday of July 2013 falls on 02-07-2013.

Question 11

In the calendar for February 2029, how many Tuesdays 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 | | | |
In February 2029, the Tuesdays fall on: 6, 13, 20, 27. Total: 4.

Question 12

What day of the week was 24 October 2024?
Using calendar calculation, 24 October 2024 was a Thursday.

Question 13

What is the fiscal year for the date 21-09-1996 (assuming April-March fiscal year)?
Fiscal year starts in April. Since month is 9 (September), it belongs to FY1996-1997.

Question 14

Is 1900 a leap year?
1900 is divisible by 4 but also by 100 and not by 400, so it's not a leap year

Question 15

In the calendar for September 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
In September 2029, the Sundays fall on: 2, 9, 16, 23, 30. Total: 5.

Question 16

In the calendar for April 2022, how many Tuesdays 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 |
In April 2022, the Tuesdays fall on: 5, 12, 19, 26. Total: 4.

Question 17

If 2 June 2005 was a Thursday, what day will 19 August 2005 be?
The gap is 78 days. 78 mod 7 = 1 days shift. Thursday + 1 days = Friday

Question 18

What day of the week was 26 January 2028?
Using calendar calculation, 26 January 2028 was a Wednesday.

Question 19

If the days of the week are coded as {'Monday': 'Zeta', 'Tuesday': 'Alpha', 'Wednesday': 'Gamma', 'Thursday': 'Delta', 'Friday': 'Theta', 'Saturday': 'Epsilon', 'Sunday': 'Omega'}, what is the code for Monday?
Monday is coded as Zeta.

Question 20

How many days are there between 19 July 2022 and 5 September 2022?
The difference between 19 July 2022 and 5 September 2022 is 48 days
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