How age is calculated?
Age is typically calculated by determining the difference in time between an individual's birthdate and a specific reference point, such as their current age or a future date. The most common way to calculate age is to subtract the birthdate from the current date.
For example, if someone was born on January 1st, 2000, and the current date is January 1st, 2021, their age would be 21 years. The calculation is done by subtracting the birth year (2000) from the current year (2021) which results in 21.
The age calculation is usually done in years, but it can also be done in other units of time, such as months, days, hours, minutes, and seconds.
To calculate age in months, for example, the number of months between the birthdate and the current date is determined. This is done by first determining the number of years between the two dates, and then multiplying that number by 12 (the number of months in a year). Then the number of months remaining is determined by subtracting the birth month from the current month.
For example, if someone was born on January 1st, 2000, and the current date is January 1st, 2021, their age would be 252 months.
Similarly, age can also be calculated in days, hours, and minutes by determining the difference in the days, hours, and minutes between the birthdate and the current date.
It's important to note that some cultures or countries may have different ways of calculating age, for example, in some cultures, age is calculated from the lunar calendar, which is not based on the same days as the Gregorian calendar. So, it's good to keep that in mind while calculating age.
