How do I calculate the difference between two dates?

Enter the start date and end date in the calculator. The tool automatically calculates the total difference in days, weeks, months, years, and business days.

Does this calculator include business days?

Yes, the Date Difference Calculator can calculate business days excluding weekends.

Can I calculate time difference in hours and minutes?

Yes, the calculator includes time difference calculation with hours and minutes for more precise results.

Can I calculate the difference between dates in different time zones?

Yes, you can select different time zones for each date to accurately calculate the difference across time zones.

What is the maximum date range the calculator supports?

The calculator supports dates from the year 1900 to 2100, covering a wide range of historical and future date calculations.

Is the Date Difference Calculator free to use?

Yes, the tool is completely free and works directly in your browser without registration.

Date Difference Calculator

Calculate exact days, weeks, months, and years between two dates

Need to know exactly how much time is between two dates? Our Date Difference Calculator gives you the precise answer in days, weeks, months, and years. Whether you're planning a project, calculating an age, or just curious about the time span between important events, this tool provides instant, accurate results.

How to Use the Date Difference Calculator

Our Date Difference Calculator makes it easy to find the exact time span between any two dates. Here's how to use it:

Enter your dates – Select the start date and end date using the date pickers.
Include time (optional) – Toggle the "Include time" checkbox to add hours and minutes for precise calculations.
Business days – Check "Exclude weekends" to see only business days (Monday-Friday).
Holidays – Use "Exclude US Federal Holidays" to remove holidays from business day counts.
Visual breakdown – The results panel shows total days, weeks, months, years, and a pie chart of weekdays vs. weekends.
Calendar view – See the date range highlighted on a calendar.
Save your results – Click "Save to History" to keep a record of your calculations.

Time Precision

Include hours and minutes

Business Days

Exclude weekends & holidays

Visual Charts

Weekday/weekend breakdown

Export CSV

Save your history

Date Details

Start Date

End Date

Include time in calculation

Start Time

End Time

Business Days Options

Exclude weekends (Sat & Sun)

Exclude US Federal Holidays

Total Days 0

Total Weeks 0

Business Days 0

Weekend Days 0

Date Difference

0 days

0 years, 0 months, 0 days

Total Days

Total Weeks

Total Months

Total Years

Business Days (Mon-Fri)

Weekdays

Weekends

Calendar View

Date History

Date Saved	Start Date	End Date	Total Days	Years/M/D	Weeks	Business Days	Weekend Days	Action

Date Calculation Disclaimer

The Date Difference Calculator provided by Easy Tools HQ is for general informational and planning purposes only. All calculations are based on standard calendar mathematics and the dates/times provided by the user.

Important notes: Business day calculations exclude weekends (Saturday & Sunday) by default. Holiday exclusions are based on a simplified US Federal Holiday list and may not reflect actual observed dates or regional variations. Month and year calculations use calendar months and may vary in exact day counts.

For legal deadlines, contract dates, payroll processing, or other critical date-dependent decisions, always consult official calendars, legal counsel, or qualified professionals. Easy Tools HQ is not responsible for errors in date calculations or any consequences resulting from their use.

Last Updated: March 2026

Business days • Holiday exclusions • Time precision