ClockBadge

Time calculator

Add up or subtract hours and minutes, and convert between 7:45 and 7.75 in both directions.

Add and subtract time

    Result0:00
    In decimal hours
    0

    Convert

    7.75
    7:45

    Adding hours and minutes

    Add the minutes together first. Every 60 minutes becomes one more hour. 3:40 plus 2:35 is 5 hours and 75 minutes, which is 6:15.

    Subtracting works the same way in reverse: borrow 60 minutes from the hours when you need to.

    Decimal hours

    Decimal hours are hours written as a number: 1:30 is 1.5 and 0:20 is 0.33. To convert back, multiply the decimal part by 60: 0.75 × 60 = 45 minutes.

    Questions

    How do I add up hours and minutes?

    Add the hours and the minutes separately, then turn every 60 minutes into an hour. The calculator does it for any number of times.

    What is 0.6 hours in minutes?

    36 minutes. Multiply 0.6 by 60.

    Can the result be negative?

    Yes. If you subtract more than you add, the result is shown with a minus sign.

    Guides

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    Your team can punch in on a tablet

    ClockBadge Time Clock turns any tablet into a punch clock. Workers tap a badge, scan a QR code or pick their name. It keeps working without internet and adds up every hour for you.

    See the time clockFree for up to 3 employees