How Old Am I?

Please enter your year of birth as a 4 digit number. Year, Month and Day are required. Leave the others blank unless you happen to know them. Choose either an accurate calculation, or normal, and click the 'Start' button. Default date is Midnight 1 January 1900.

These figures depend on the accuracy (or otherwise) of your system clock, and, of course, the unlikely event of your knowing your time of birth to the second.

This algorithm will stop working on 19 January 2038. I will stop working long before then.

Script from: The JavaScript Source

.	I was born on...	Year Month Day Hour Minute Second
.	I Am...		...Years Old
.	Or...		...Days Old
.	Or...		...Hours Old
.	Or...		...Minutes Old
.	Or...		...Seconds Old