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Online Hours and Minutes Calculator
Find the duration between two times or two date-times, shown as days, hours, and minutes, decimal hours, and total minutes. Free and instant.
Hint: D = Days, H = Hours, MIN = Minutes
| Days, Hours and Minutes | 20H 6MIN |
|---|---|
| Hours and Minutes | 20H 6MIN |
| Hours | 20.1H |
| Minutes | 1,206MIN |
| Days, Hours and Minutes | 3D 4H 15MIN |
|---|---|
| Hours and Minutes | 4H 15MIN |
| Hours | 76.25H |
| Minutes | 4,575MIN |
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What Is This Tool?
The Hours and Minutes Calculator finds how much time passes between two points. In the Between Two Times mode you enter a start and end time, and it returns the duration, rolling over to the next day if the end time is earlier than the start. In the Between Two Dates mode you add a start and end date along with times to measure a longer span. Each result is shown several ways: as days, hours, and minutes, as hours and minutes, as decimal hours, and as total minutes. The result can be downloaded as a PDF.
How to Use This Tool?
- Choose the Between Two Times or Between Two Dates mode.
- Enter your start and end times, plus dates if you are using the dates mode.
- Use the quick buttons to fill common values if you like.
- Click Calculate, then download the result as a PDF if needed.
Key Features
- Works between two times or between two full date-times.
- Rolls over to the next day when the end time is before the start time.
- Shows the duration as days/hours/minutes, hours/minutes, decimal hours, and total minutes.
- Quick buttons for now, midnight, noon, today, and yesterday.
- Download the result as a PDF.
Examples
- From 01:12 to 21:18 is 20 hours and 6 minutes.
- That same span is about 20.1 decimal hours, or 1,206 minutes in total.
- From 18 Jan 2023 at 11:20 to 21 Jan 2023 at 15:35 is 3 days, 4 hours, and 15 minutes.
- That longer span is 76.25 decimal hours, or 4,575 minutes in total.
Common Use Cases
- Working out hours on a shift or a timesheet.
- Measuring how long a task or study session took.
- Finding the length of an event spanning several days.
- Converting a duration into decimal hours for billing.
- Checking elapsed time across an overnight period.
Tips & Best Practices
- Use the Between Two Dates mode whenever a span crosses midnight more than once.
- Remember that the times mode assumes the next day when the end is earlier than the start.
- Use decimal hours when you need a single number for billing or pay.
- Use the quick buttons to fill now, midnight, or noon without typing.
- Double-check that the end date is after the start date in the dates mode.
Limitations
- The times mode assumes a single overnight roll-over, not multiple days.
- The dates mode expects the end date-time to be after the start date-time.
- It works to the minute and does not include seconds.
- It does not account for time zones or daylight saving changes.
Frequently Asked Questions
- What is the difference between the two modes?
- Between Two Times measures a span within a day or across one midnight, while Between Two Dates measures a longer span using both dates and times.
- What happens if the end time is before the start time?
- In the times mode the tool assumes the end is on the next day and rolls over, so an overnight span is measured correctly.
- What are decimal hours?
- Decimal hours express a duration as a single number, so 20 hours and 6 minutes becomes about 20.1 hours.
- Can I save my result?
- Yes. Click Download Result as PDF to save all of the duration formats as a file.
Key Terminology
- Duration
- The amount of time between a start point and an end point.
- Elapsed time
- How much time has passed between two moments.
- Decimal hours
- A duration written as a single number of hours, such as 20.1.
- Overnight roll-over
- Treating an end time earlier than the start as being on the next day.
- 24-hour time
- A time format running from 00:00 to 23:59 without AM or PM.