Date and Time Calculators
Work out ages, durations, deadlines, and other date and time questions.
Number of Calculators: 9
- AgeFind your exact age in years, months, and days (or weeks), as of today or any date, plus a countdown to your next birthday.
- Date & Time DurationFind the exact duration between two dates and times — in days, hours, and minutes, or weeks and remaining days.
- Days Until / CountdownFind out exactly how many days, weeks, and days remain until a date — or how long ago it was.
- Hours WorkedCalculate total hours worked between a clock-in and clock-out time, minus any unpaid break, plus total pay at an hourly rate.
- Time CardAdd up a full work week of daily clock-in and clock-out times into total hours, with regular vs. overtime pay.
- Day of the WeekFind out what day of the week any past, present, or future date falls on.
- Sleep CycleFind the best bedtime or wake-up time based on 90-minute sleep cycles, so you wake up between cycles instead of in the middle of one.
- Time ZoneConvert a date and time from one time zone to another, including Daylight Saving Time.
- Business DaysCount the number of business days (weekdays) between two dates, or find the date a number of business days from now.