An original point of view


How to calculate the duration of your life?

The gregorian calendar one year time calculator

The one year time calculator in the Gregorian calendar.

Each of you knows your birthdate and how old are you. I guess, that nobody is able to make an exact calculation of the duration of life. When you are interested in this issue usually you are researching on the Web some calculator. There is quite a lot of place on the Internet, where you can count your life duration, however, I don’t really know about it because I made a signature traditional solution to compute exactly how many days have you been alive.

Everything comes from the Gregorian Calendar, which became the most popular civil calendar introduced by Pope Gregory XIII in 1582. I am not going to describe this entire process how it was, because that information you can find on Wikipedia and elsewhere. I just would like to show you what I did within the Gregorian Calendar issue to show you how to separate your life every single day.

By the way, if you are interested in this theme I can give you the link where you can learn much more about this:

All about the Gregorian Calendar

One common year has 365 days, and one leap year has 366 days. This is simple, but when we try to multiply these numbers by the number of years it may be more complicated, however with a manual multiplying or typical calculator it’s gonna be simple. The problem is, that even when we multiply the number of days by the number of years we will receive a simple outcome indicating to us how many days is from e.g. 1st January to another 1st January in the year, which we are interested in.

Gregorian calendar one year time calculation

Pic. 1 The way to calculate the duration of time within one year.

The picture above (pic.1) shows you how to compute a period of time within one year. It’s might be helpful when you want exactly to know how many days left for some important event or how many days ago did you celebrate your last birthday.


Pic.2 The XXth and XXIst Century Gregorian Calendar calculator. Full size available here.

Picture 2 presents a full manual calculator, which you can use to compute any time period, you want. If you want to calculate a period longer than 200 years you may refer to the picture below (Pic. 3).

Gregorian calendar full 400 years cycle time calculator

Pic. 3 The full 400 years Gregorian Calendar cycle calculator. Full size available here.

The full 400 years Gregorian Calendar cycle calculator gives you an opportunity to make calculations for very long durations like 400 years (146097 days) or even more when you add up another period (for example another 250 years – 91311 days) to receive your amount desired (650 years – 237408 days).

I realize, that here I brought only the ways to make these various calculations. If you want to see how to do this, you need to click here. There are live examples with a full explanation of how to make a proper calculation. For instance, when you are 64 years old today, you have around 23300 days for sure! In general, the human’s life duration ranges from 27000 to 30000 days. Obviously, it depends on where you live and what is the level of medical treatment in your country. Anyway, I would like to encourage you to take those interesting calculations using my signature idea.

Mariusz Krukar


The Gregorian Calendar calculator

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