Time Calculator | Add, Subtract, Multiply, Divide Time

  • Enter your Clock-In and Clock-Out times for each work period.
  • Click "Calculate" to perform the desired time operation.
  • Repeat the above steps for multiple calculations if needed.
  • Click "Clear" to reset the inputs and result.
  • Click "Copy" to copy the calculation result to the clipboard.
  • View your calculation history below.
Calculation History

    The time calculator is a useful tool for performing arithmetic operations on units of time, including hours, minutes and seconds. It allows adding, subtracting, multiplying and dividing time values in various formats.


    The time calculations are based on simple arithmetic principles adapted for time units:

    • Addition: Sums the hours, minutes, and seconds separately
    • Subtraction: Subtracts smaller time from larger time
    • Multiplication: Multiplies hours and minutes separately
    • Division: Divides hours and minutes separately

    The calculator handles carryover from seconds to minutes, minutes to hours automatically.


    Key features of the time calculator:

    • Supports time in 12/24 hour formats
    • Handles input in hours, minutes, seconds
    • Addition, subtraction, multiplication and division
    • Auto carryover of units
    • Options for rounding off
    • Outputs total time in various formats
    • Graphical representation of time values
    • Validation for improper time values


    Benefits of using the time calculator:

    • Performs arithmetic operations on time units quickly
    • Eliminates errors doing time calculations manually
    • Handles time values in any format
    • Useful for scheduling, time tracking, billing
    • Simplifies complex time problems
    • Visualizes time values and calculations
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    The time calculator has many applications:

    • Adding/subtracting elapsed time
    • Multiplying/dividing hourly rates
    • Calculating cooking, workout times
    • Scheduling meetings, calls, tasks
    • Logging work hours and billing time
    • Travel and flight planning


    The time calculator provides a simple way to do basic arithmetic operations on time values in various formats. Automating the carryover handling makes calculations easy and error-free. It is a handy tool for time management, scheduling, tracking, and productivity tasks.

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