Calculate the end time from the start time and elapsed time.

From the start time and elapsed time, calculate the time after the elapsed time or the time before the elapsed time.

Enter the start time and elapsed time, select "Time after" or "Time before", and click the "Calculate time" button, calculate and display the time after or before the start time.

Click the "Current Time" button to enter the current time in the start time or end time.

If you select "Time after", the time after the elapsed time from Start time will be calculated.

If you select "Time before", the time before the elapsed time from Start time will be calculated.

The elapsed time can be entered, such as 2000 seconds and 100 minutes.

If you check "No seconds display", the elapsed time will be calculated by inputting only "Hour" and "Minute".

Clicking the "Clear" button will set all entered times to 0.