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Calculate Age in Years and Days

Calculator for the age, how old in years and days somebody is today or at a certain date. As a reference date, the date today is preset, this can be changed.

Date of Birth: January February March April May June July August September October November December . 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 31 .

Current date: January February March April May June July August September October November December . 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 31 .



The age is years and days.
Those are days.
Those are hours.
Those are minutes.
Those are seconds.

The result in years is not totally exact, because a year can have 365 or 366 days. The age, which is the time span between one date and another, is calculated as x years, independent of the number of days of a year. If there is a leap day between the current year and the year before, one day more is counted. Example: From May 1. 2013 to March 1. 2017, there were 3 years and 304 days. Whereas from May 1. 2012 to March 1. 2016, there were 3 years and 305 days. However, both time spans had the same length with 1400 days.

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