Date Calculator

Calculate Business Days Between Dates
Add Business Days

Calendar

About Date Calculations

Date Difference

The date difference calculator helps you find the exact amount of time between two dates. This is useful for calculating age, project durations, contract periods, or simply how much time has passed since a significant event.

Adding or Subtracting Time

The time addition/subtraction tool allows you to calculate a future or past date by adding or subtracting years, months, weeks, and days from a given date. This is helpful for determining deadlines, subscription renewals, or planning events.

Business Days

The business days calculator computes the number of working days between two dates, excluding weekends and optionally holidays. You can also find a future date that is a specified number of business days from a starting date. This is essential for business planning, project management, and understanding delivery timeframes.

Leap Years

A leap year has 366 days instead of 365, with an extra day added to February (February 29). Leap years occur every 4 years, but not on century years unless they are divisible by 400. For example, 2000 was a leap year, but 1900 was not. Our calculators automatically handle leap years in all calculations.