Dates and times without the counting
Counting days across months and leap years is easy to get wrong by hand. These tools handle calendar rules for you, including 29 February birthdays and months of different lengths.
7 free tools
Date & Time Calculators
Exact ages, days between dates, hours worked and time durations, calculated the way official forms expect.
Age Calculator
Exact age in years, months and days, plus your next birthday.
Hours Calculator
Hours between two times, minus breaks, including overnight shifts.
Date Calculator
Add or subtract days, weeks, months or business days from a date.
Time Duration Calculator
Exact time between two date-times, or add and subtract a duration.
Day Counter
Days between two dates, weekdays versus weekends, and a countdown.
Birthday Calculator
Weekday you were born, next birthday countdown, zodiac and milestones.
Time Clock Calculator
Weekly timesheet with breaks, overtime over 40 or 44 hours, pay and CSV.