Start And End Time Calculator



Calculating the start and end time for various activities is a common task in many fields. Whether you are planning an event, managing a project, or tracking work hours, having an efficient Start and End Time Calculator can streamline the process. In this article, we will provide a simple and effective calculator using HTML and JavaScript, along with guidelines on how to use it.

How to Use

To use the Start and End Time Calculator, follow these steps:

  1. Enter the start time in the designated input field.
  2. Enter the duration of the activity in hours and minutes.
  3. Click the “Calculate” button to obtain the end time.


The formula for calculating the end time is straightforward:


Suppose you want to determine the end time of a meeting that starts at 2:30 PM and lasts for 1 hour and 45 minutes.

  • Start Time: 2:30 PM
  • Duration: 1 hour and 45 minutes Click “Calculate,” and the result will display the end time.


Q: Can I input time in the 24-hour format?
A: Yes, the Start Time input accepts time in the 24-hour format (HH:mm).

Q: Is it possible to calculate durations longer than 24 hours?
A: Absolutely. The calculator accommodates durations of any length, combining hours and minutes accurately.


The Start and End Time Calculator presented here simplifies time calculations, providing a quick solution for diverse scenarios. Easily customizable, this tool enhances efficiency in planning and scheduling.

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