## Introduction

There are 12 months listed on a calendar which makes a whole year. Each month either has 30 or 31 days in it. February is the only month made up of 28 or 29 days. There are seven days a week and a month has 4 weeks in it. One day consists of a total of 24 hours. Let us now learn about how to calculate dates.

### How to Calculate Days: Basics

To calculate the number of days between two dates, we must first determine the number of days in each calendar month.

January, March, May, July, August, October, and December are the months that have thirty-one days.

April, June, September, and November are the months that have thirty days.

Months with 28 days - February (February in a leap year has 29 days)

The number of days between two dates can be calculated by the simple operation of addition and subtraction.

Calendar Of 2022

### How to Calculate Calendar Days

Let's look at how to calculate the number of days between two dates using the solved example below.

Find the number of days between 10 January and 10 March.

**Step one:** Calculate the number of days in the month of January from the given date by subtracting it from the total days of the month. While subtraction we will omit a day so that needs to be added to the calculation.

**Step two:** Calculate the number of days in march till the given date. Here 1 should be subtracted as during calculation one extra would get added.

**Step three:** Add the number of days you got from step one, and step two and the number of days present in the month of February.

Number of days in January\[ = 31 - 10 + 1 = 22\]

Number of days in March\[ = 10 - 1 = 9\]

Number of days between 10 January and 10 March \[\begin{array}{l} = {\rm{ }}days{\rm{ }}in{\rm{ }}January{\rm{ }} + {\rm{ }}days{\rm{ }}in{\rm{ }}February{\rm{ }} + {\rm{ }}days{\rm{ }}in{\rm{ }}March\\ = 22 + 28 + 9\\ = 59\end{array}\]

### How to Calculate Days a Fortnight Before or After?

This is another type of day calculation question in which a fortnight before or after is asked. You should know that a fortnight consists of 14 days. To calculate a fortnight before you need to subtract 14 from the given date and need to add 14 if asked for a fortnight after the given date.

### Conclusion

The calendar date calculation is used to calculate the number of dates between two days of the same or different months. Through this, it makes it easy to know the number of days between the current date and the big event that might be coming up. We can also do the countdown based on these calculations.

### Sample Questions

1. If today is Sunday, what was the day before yesterday?

a. Wednesday

b. Thursday

c. Friday

d. Saturday

Ans: Friday

Explanation: If today is Sunday then yesterday would have been Saturday and the day before yesterday would be Friday.

2. If today is Monday, what will be two days after today?

a. Wednesday

b. Thursday

c. Friday

d. Saturday

Ans: Thursday

Explanation: If we count two days after Monday we will get Thursday and between Tuesday and Wednesday are present.

3. If today is 29 April what was the date a fortnight before?

a. 12

b. 13

c. 14

d. 15

Ans: 15

Explanation: To find the date a fortnight before we need to subtract 14 from the mentioned date. So if we subtract 14 from 29 we will get 15. A fortnight before 29 April was 15 April.

## FAQs on Calendar Date Calculation

1. How to solve calendar problems formulas?

The day calculation formula is different for different types of problems but basic operations like addition and subtraction are used in these questions. You should remember the number of days of every month in a year to make your calculation easier.

2. How many weeks are there in a year?

There are 52 weeks in a year with each month having 4 weeks in it.

3. How many months have 28 days in them?

February is the only month that has 28 days in total in it. The rest of the months have 30 or 31 days.

4. How many weeks are there in a year?

There are 52 weeks in a year. This can be calculated by dividing the total number of days in a year by the number of days in a week which will give us the result of 52.

5. How many weeks are there in a month?

There are 4 weeks in a month. We can divide 30 or 31 days by 7 to get the number of weeks in a month.