Time & Date
Ages, durations, working days and deadlines.
Dates
Age, days between dates, business days, week numbers and adding time.
- Add or Subtract Days, Weeks, Months and Years From a Date Find the date a number of days, weeks, months or years before or after another date.
- Age Calculator Exact age in years, months and days, in total days, and on any date you choose.
- Birthday Countdown Calculator How many days until your next birthday, the day it falls on and the age you will turn.
- Business Days and Working Days Calculator Count the weekdays between two dates, leaving out weekends and any public holidays you enter.
- Countdown to a Date Calculator How many days, weeks and months until a date, and how many of them are weekdays.
- Date Difference Calculator: Days, Weeks, Months and Years Between Dates The time between two dates in days, weeks, months and years.
- Day of the Week Calculator Which day of the week any date falls on, past or future.
- Day of the Year and Days Remaining Calculator A date’s number within the year, and how many days of the year remain.
- Deadline Date Calculator The date a number of business or calendar days from a start date, skipping weekends and public holidays you enter.
- Leap Year Calculator Check whether a year is a leap year, and find the leap years either side of it.
- Quarter of the Year Calculator Which calendar or financial quarter a date is in, when it starts and ends, and how many days are left.
- Week Number Calculator The ISO 8601 week number of any date, with the Monday and Sunday of that week.
Hours & Time
Durations, decimal hours, timesheets, shifts and overtime.
- Decimal Hours Calculator: Time to Decimal and Back Convert hours and minutes to decimal hours for a timesheet, and decimal hours back to hours and minutes.
- Overtime Hours Calculator Overtime hours from a week of shifts, over a weekly or daily threshold you set.
- Shift Duration and Break Deduction Calculator Hours in a shift after taking off breaks, including shifts that cross midnight.
- Stopwatch Split Calculator Turn stopwatch splits into lap times, or lap times into running totals, with the fastest, slowest and average lap.
- Time Addition and Subtraction Calculator Add and subtract times in hours, minutes and seconds, as a running total or from a time of day.
- Time Duration and Hours Between Times Calculator How long it is between two times of day, including across midnight.
- Timesheet and Work Hours Calculator Total a week of work hours from start times, end times and breaks, including overnight shifts.