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Date & Time Calculators

Count days, check an age or work backwards from a deadline. Choose a date calculator for calendar questions or a time calculator for hours and minutes.

Browse Date & Time tools

Browse 100 Date & Time tools on The Quick Helper.

Calendar Spans

Clock Durations

Personal Milestones

Recurring Schedules

Choose the right kind of time calculation

A date range, a time range and a live timer answer different questions. Date tools use calendar dates; duration tools compare times; countdown timers keep updating while the page is open. Check the individual method for whether the final day is included and how an overnight time is handled.

For a work shift, calculate the elapsed duration first, then use the earnings tool in Money & Shopping if you also need a pay estimate. These calculations do not apply an employer's payroll rules or a public-holiday calendar automatically.

From shift length to earnings

Find the duration, then enter those hours and your rate in the earnings calculator. Allow for unpaid breaks and payroll rules yourself.

  1. 1. Shift duration
  2. 2. Earnings estimate

Common questions

Does a weekday count exclude bank holidays?

The weekday calculators count Monday to Friday. They do not look up national or local holidays, so subtract any relevant holidays separately.

Which tool should I use for an overnight shift?

Open Work Shift Duration and check its overnight example. For a span across several calendar days, choose a tool with date and time inputs rather than entering two clock times.

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