Free Date to Date Calculator

You can use the My Hours Days Calculator to accurately determine the number of years, months, and days between two dates.

Here’s an example to help you understand how to calculate the days between two dates manually:

Let’s say you were born on the 1st of July 1980, and you want to calculate how old you are in days as of 5th February 2024. To do that, you should:

1. Subtract the last complete end year from the start year.

1st of July of 2023 - 1st of July of 1980 

2023 - 1980 = 43

2. Convert the result to days

Each year is equal to 365,25 days. The 0,25 is added to account for leap years. With that in mind, the calculation will look something like this:

43 x 365,25 = 15705,75

3. Calculate the number of months between July of 2023 and February 2024

12 months - 7 months (because we start in July) = 5 months in 2023

5 months + 2 months (because of February) = 8 months in total

Divide the average number of days in a year with the number of months in a year to get the average number of days in a month:

365,25 / 12 = 30,44

Multiply the result with the number of months between July of 2023 and February 2024 to get the average number of days:

30,44 x 7 = 213,08

4. Add up the total number of days and round up the number to get the final result

15705,75 + 213,08 + 5 (days for February) = 15923,83

After rounding up, we get that the number of days between 1 of July 1980 and 5 February 2024 is 15924.