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Life Clock Calculator: What Time Is It in Your Life?

What time is it in your life? Our free life clock maps your age onto a 24-hour day using US life expectancy, with male, female, or custom options.

Enter your birthdate to see your life clock.

How it's calculated

Life clock hours = (age ÷ life expectancy) × 24. The whole-number part is the hour and the fraction × 60 is the minutes. The result is shown on a 12-hour clock.

Life expectancy defaults to US figures from the CDC’s 2023 final data: 78.4 years overall, 75.8 for men, and 81.1 for women. A 35-year-old woman: 35 ÷ 81.1 × 24 = 10.36 hours, or about 10:21 AM.

If the average life expectancy were compressed into a single 24 hour calendar, how far into the day would you be? Let’s find out.

A few things to keep in mind about this calculator. First of all, relax. It’s a metaphor. We hope it helps you but it’s a metaphor. Also, life expectancy changes every year and is different depending on your gender (women typically live longer), where you were born (developing nation vs undeveloped) and when you were born. Life extending technologies have made the promise of extending life possible, but that’s no excuse to avoid taking life by the horns.

What we hope, is that the time of day that you see after entering your birthday motivates in a way like never before. That you realize that it’s time for you to start doing all the fun things that you’ve been putting off. However, that’s up to you. Also note this is based on the average lifespan of 76 years. Update: We have updated the life clock calculator to include a place where you can select whether you are male or female which impacts the time. The difference is based on this CDC study.

Some Notes about our life clock

This is based on CDC’s August 2022 Study

This current clock is based on life expectancy based on the CDC study above. The proportion of a single hour in the context of a 24-hour day. A day has 24 hours, so each hour represents 1/24th of the day.

How does gender play a role?

It gets the life expectancy based on the gender selected: 73.2 for males and 79.1 for females. If no gender is selected, it defaults to 76.

These are averages

These “life clock times” are based on averages and should not be taken as an actual prediction of an individual’s lifespan. Factors such as country and ethnicity can play a major role in life expectancy.

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Frequently Asked Questions

›What is a life clock?

A life clock squeezes an average lifespan into one 24-hour day. Birth is midnight and the end of a typical life is the following midnight, so the time shown is how far through the "day" of your life you are.

›What time is it in my life if I am 40?

With a 78.4-year life expectancy, age 40 is about 12:14 PM: just past noon. Age 20 is about 6:07 AM, and age 60 is about 6:22 PM.

›Why does gender change the result?

Women in the US live about five years longer than men on average (81.1 vs 75.8 years in 2023 CDC data), so the same age sits earlier on a woman’s clock.

›Can I use my own life expectancy?

Yes. Choose Custom and enter any number of years, for example an estimate from a longevity calculator or family history.

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