Duration Between Two Times

Elapsed time between two dates and times.

DATE AND TIME BOTH ENDS - TO THE SECOND

Your numbers stay on your device

  • Date + timeboth ends
  • Days toseconds
  • Instantresults
  • Privatecalculation
In practice

What you can count on

  • 2points in time
    • A start date and time
    • An end date and time
  • 1result
    • The total elapsed duration
    • In hours, minutes, and seconds
  • 100%in your browser
    • No data is ever transmitted
    • Calculations are immediate
Specification

Duration Calculator at a glance

What you enter
Start and end, each with a date
What comes back
Elapsed time, plus three totals
Spans of days
Dates on both ends, so days count
How many at once
One span at a time
Where it runs
Runs in your browser, nothing sent
Seconds
Tick the box to use seconds
Price
Free
Account required
No
How to

How to use Duration Calculator

  1. 1

    Pick the Start

    Choose the date and the time the period begins. Your own device supplies the picker.

  2. 2

    Pick the End

    Choose the date and the time it ends. Both ends carry a date, so a span over midnight needs no trick.

  3. 3

    Read the Duration

    The span appears as days, hours, minutes and seconds, with the totals in hours, minutes and seconds underneath.

Questions

Frequently asked questions

How does it handle a span that crosses midnight?

Both ends carry their own date, so the span is measured from exactly the two points you gave. Nothing is assumed about the next day.

What does this tool work out?

You give a start and an end, each with a date and a time, and it returns the span in days, hours, minutes and seconds, plus three running totals.

What format do the dates take?

Whatever your own device uses — both boxes are your browser’s date-and-time picker, so there is no format to get right.

Background

Spans That Run Across Days

Pick a start and an end, each with its own date and time. You get the span in days, hours, minutes and seconds, plus the totals in hours, in minutes and in seconds.

  • Because both ends carry a date, a span of several days is counted as it stands rather than folded back into one day.
  • A start of 22:00 on Friday and an end of 02:00 on Sunday comes back as 1 day 4 hours, not as 4 hours.

Full specification

Specification of the Duration Calculator tool
What you enterA start date and time, and an end date and time.
What comes backElapsed time as days, hours, minutes and seconds, plus totals in hours, minutes and seconds.
Spans of daysBoth ends carry a date, so a span across midnight or over several days is counted as it stands.
How many at onceOne span at a time.
Where it runsEverything happens in your browser tab. What you type never leaves the device.
SecondsSeconds are off by default. Tick Enter seconds too before typing them, or the seconds in the answer stay at zero.
PriceFree
Account requiredNo
Next step

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