How many nanoseconds old am I?

Calculate age in days, hours, minutes and seconds

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With this free online tool you can calculate your age (or generally speaking a period of time) in years, days, hours, minutes and even seconds. Simply enter your date of birth and the current day, for example.

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How old am I?

Select your date of birth here and use it to determine how old you are at a certain point in time - in years, days, minutes and seconds. This is a nice idea, for example for funny birthday cards or invitations for birthday parties, to show how old someone is or will be.


Of course, you can also calculate the difference in years or days (etc.) between any two dates in order to find out, for example, how long you've been married, with someone / in love or how long you've been out of school.