1
Enter birth date and time
Use the date and time picker so your exact age, live second counter, and next birthday countdown match your real birth moment.
Age & life analysis
Enter your birth date and time for exact age, live totals, next birthday, and zodiac insights.
Choose your birth date and time to see the analysis.
Pro Tip
Adding your birth time makes totals like hours and seconds meaningful. Try noting your next birthday countdown a few days ahead so you can plan celebrations down to the hour.
How to Use the Age Calculator
2
Read your life totals
See years, months, and days, plus total weeks, hours, minutes, and seconds updated in real time.
3
Check countdown and zodiac
View time until your next birthday and explore your Western zodiac sign and Chinese zodiac animal.
Understanding Age Calculations
Calendar age (years, months, days) uses the gap between two dates so months and days align with the calendar—not a fixed 30-day month. Totals like hours and seconds use the exact elapsed time from your birth moment to now, so they stay in sync with a live clock.
Chinese zodiac year follows the lunar new year: if you were born before Chinese New Year in a given Gregorian year, your lunar year (and animal) may match the previous year. Western zodiac signs follow the tropical calendar by month and day.
Frequently Asked Questions
Your “days alive” is the number of full 24-hour periods between your birth instant and now. This tool shows that as total days (and also total weeks, hours, minutes, and a live second count). If you only enter midnight, use your real birth time for the most accurate totals.
Years, months, and days use calendar difference (including leap years and different month lengths). Hours, minutes, and seconds use the exact time elapsed from your birth date and time to the current moment.
Day counts help with milestones (for example 10,000 days alive), comparisons, and curiosity. Pairing days with birth time gives a precise picture of how long you have lived in smaller units.
Calendar age respects leap days. If you were born on February 29, your next birthday in a non-leap year is treated as February 28 for the countdown, which is a common convention.
We assign the animal based on the lunar year, using the Chinese New Year date (Gregorian) for each year. Dates before that year’s New Year belong to the previous lunar year’s animal.