Date Calculator

Calculate date differences, add/subtract time, and handle holidays with this simple tool.

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Date Difference Calculator

Date Manipulation Calculator

How Does This Date Calculator Work?

This tool helps you calculate the difference between two dates and allows you to manipulate dates by adding or subtracting years, months, weeks, and days. It also includes the option to include holidays, based on the US legal holidays, and you can even add custom holidays to exclude from the calculation.

Module 1: Date Difference Calculator

In the first module, you can calculate the number of days between a start and end date. You can also choose whether to include the end date in the calculation and whether to exclude holidays (default includes holidays). You have the option to add your own custom holidays to the calculation.

Module 2: Date Manipulation Calculator

The second module allows you to add or subtract specific amounts of time (in years, months, weeks, or days) from a given start date. The resulting date is displayed along with the day of the week, helping you understand how your date changes after the specified time is added or subtracted.