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Hours and Minutes Calculator (Add and Subtract Time)

ঘণ্টা-মিনিট যোগ-বিয়োগ ক্যালকুলেটর

Add or subtract hours and minutes, such as 2 h 45 min + 3 h 30 min, and see the total in hours and minutes, decimal hours and minutes.

More Date & Time calculators

Enter each time as hours and minutes. Choose − to subtract a row. Leave unused rows blank.

  • Time 1

  • Time 2

  • Time 3

The total will appear here

Enter hours and minutes, then select Add up time.

How to add hours and minutes

Add the hours, add the minutes, then turn every 60 minutes into 1 hour. To subtract, borrow 1 hour as 60 minutes when the minutes run short.

A worked example

Three study sessions: 2 h 45 min, 3 h 30 min and 1 h 50 min.

  1. Hours: 2 + 3 + 1 = 6.
  2. Minutes: 45 + 30 + 50 = 125 = 2 h 5 min.
  3. Total: 6 h + 2 h 5 min = 8 h 5 min.
  4. Decimal hours: 485 minutes ÷ 60 = 8.08 hours.

Subtracting: 8 h 0 min − 1 h 15 min. Borrow an hour: 7 h 60 min − 1 h 15 min = 6 h 45 min, or 6.75 hours.

Minutes to decimal hours

Decimal hours = minutes ÷ 60. Timesheets, payslips and overtime sheets often use them.

  • 15 minutes = 0.25 hours
  • 30 minutes = 0.5 hours
  • 45 minutes = 0.75 hours
  • 5 minutes ≈ 0.08 hours (shown to 2 decimal places)

Got your overtime as hours and minutes? Turn it into decimal hours here, then use the overtime pay calculator. To count hours from start and finish times, with breaks and night shifts, use the work hours calculator instead.

Assumptions

  • Each row is a length of time, not a clock time, so nothing rolls over at midnight.
  • Hours and minutes are whole numbers; minutes may be 60 or more.
  • A day is 24 hours. Whole days are shown once the total reaches 24 hours.
  • For gaps between calendar dates, in days, months and years, use the date difference calculator.

How to use the calculator

  1. Enter the hours and minutes of each time.
  2. Choose − Subtract for any row to take away.
  3. Add more rows (up to 20) or leave unused rows blank.
  4. Select Add up time to see the total, decimal hours and minutes.

The sum runs in your browser. Recent calculations are kept only on this device, and you can turn that off.

Frequently asked questions

How do I add hours and minutes?

Add the hours and the minutes separately, then turn every 60 minutes into 1 hour. Example: 2 h 45 min + 3 h 30 min + 1 h 50 min = 6 h 125 min = 8 h 5 min.

How do I convert minutes to decimal hours?

Divide the minutes by 60. 30 minutes = 0.5 hours, 15 minutes = 0.25, 45 minutes = 0.75, and 5 minutes ≈ 0.08. So 8 h 5 min is about 8.08 hours. Payslips and overtime sheets often use decimal hours.

How do I subtract time?

Choose − for the row to take away. If the minutes are not enough, borrow 1 hour as 60 minutes: 8 h 0 min − 1 h 15 min = 7 h 60 min − 1 h 15 min = 6 h 45 min.

Can I enter more than 59 minutes?

Yes. 90 minutes is read as 1 hour 30 minutes, so you can add up times written only in minutes, such as call or class durations.

How do I work out hours between a start and finish time?

Use the work hours calculator: it takes clock times such as 08:00 and 19:00, handles shifts past midnight and breaks, and shows overtime beyond 8 hours a day. This page adds durations, not clock times.

Is anything I enter saved or sent?

Nothing is sent. The sum runs in your browser, and recent calculations are kept only on this device if you leave that on.

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