Date, time, and age calculators
Convert how often something happens from one time unit to another. Enter a frequency per second, minute, hour, day, week,…
Find all palindrome dates in any date format (MM/DD or DD/MM, 4-digit or 2-digit year). Search upcoming palindrome dates…
All-in-one hours calculator: add hours for payroll, convert between time units, calculate hours between two times, build…
Calculate Greenwich Mean Sidereal Time (GMST), Greenwich Apparent Sidereal Time (GAST), Local Mean Sidereal Time (LMST),…
Add or subtract years, months, weeks, and days from any date. Find out what date it will be in 90 days, 6 months, or 2 years.…
Determine the Moon phase for any date using the synodic month formula. Find the current moon phase, illumination percentage,…
Convert any time in hh:mm:ss format to decimal hours, decimal minutes, and decimal seconds instantly. Essential for payroll,…
Calculate your age in the Chinese lunar calendar and the Hijri (Islamic) lunar calendar. Find out your Chinese New Year age…
Find out what day of the year any date falls on, how many days are left in the year, and whether the year is a leap year.…
Calculate your exact chronological age in years, months, weeks, days, hours, minutes, and seconds. Find out how old you were…
Calculate the number of days between two dates in years, months, weeks, days, hours, minutes, and seconds. Add or subtract…
Calculate the number of business days between any two dates. Exclude weekends, choose 5-day or 6-day workweek, add custom…
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