Age Calculator

Birth date

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Timezone (for target date)

Include time of day

Age difference

0 Years
0 Months
0 Days
0 Weeks
0 Hours
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Total Time Lived

- total months
- total weeks
- total days
- total hours
- total minutes

Next birthday countdown

Interesting facts

Weekday of birth: -
Zodiac sign: -
Seconds lived: -
Next 10,000-day milestone: -

🎂 Fun Facts About Your Age:

Share your milestone achievements with friends or use our timezone converter to coordinate celebrations across different time zones!

Understanding Age Calculations

This calculator uses the internationally recognized Gregorian calendar system. Age is calculated as the time elapsed since birth until the specified date, accounting for leap years and varying month lengths.

Cultural Differences in Age Counting

Western/International: Age starts at 0 at birth and increases on each birthday (used in this calculator).
East Asian (Korean): Traditionally, a baby is considered 1 year old at birth, and everyone ages up on New Year's Day. (Note: South Korea transitioned to international age reckoning in June 2023).
Chinese: Similar to Korean, babies are 1 at birth. Some use Lunar New Year for age increments.
Japanese: Historically used similar system, but now follows international standard.

Age Milestones

Milestone	Days	Years (approx)
1,000 days	1,000	~2.7
5,000 days	5,000	~13.7
10,000 days	10,000	~27.4
20,000 days	20,000	~54.8
1 million hours	~41,667	~114

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