Date Calculator

To calculate the exact number of days between two dates, use our Date Difference Calculator. It subtracts the start date from the end date to give the total duration in days, weeks, and months.

By selecting today's date, choosing the “Add” action, and entering 90 in the days input field, our calculator will show the exact date that falls 90 days in the future.

Select today's date, choose the “Subtract” action, and input 100 in the days field. The calculator will show the calendar date exactly 100 days in the past.

Business days exclude Saturdays and Sundays. You can calculate the exact count of business days by subtracting the total number of weekend days from the total days between two dates.

The calculator determines the number of weekends by counting the number of Saturdays and Sundays that fall within the specified date range.

By default, date difference calculations measure the span between two points, meaning they exclude the start day. If you want to include both the start and end dates in your count, simply add 1 to the final result.

Yes, the date calculator automatically accounts for leap years, meaning it recognizes when a February has 29 days, ensuring that all duration offsets remain correct.

Yes, our Date Difference Calculator provides a full breakdown in years, months, and days, showing the exact number of full calendar months between any two selected dates.

Yes, the tool computes the total difference in full calendar years between two dates, making it easy to determine long time spans or historical durations.

The date calculator uses standard JavaScript Date objects which align with the Gregorian calendar. It is fully accurate for any dates from the year 100 to the far future.