Days Between Calculator – Free & Easy Percent Tool

Days Between Calculator helps you calculate the exact number of days between any two dates, count business days, add or subtract days from dates, and find date differences instantly. Free, fast, and accurate date calculator with detailed results and calculation history.

Light Dark

Calculate Days Between Dates

Find the exact number of days between two dates

365 Days
From January 1, 2024 to December 31, 2024
52 weeks, 1 day
12 months • 8,760 hours • 525,600 minutes

Business Days Calculator

Calculate working days excluding weekends

23 Business Days
From January 1, 2024 to January 31, 2024
Total days: 31 • Weekends: 8 days
Working days: 23 • 4 weeks, 3 days

Add Days to Date

Calculate a future date by adding days

March 31, 2024
January 1, 2024 + 90 days
90 days = 12 weeks, 6 days
Approximately 3 months from start date

Subtract Days from Date

Calculate a past date by subtracting days

December 1, 2024
December 31, 2024 - 30 days
30 days = 4 weeks, 2 days
Approximately 1 month before start date

Calculation History

1

Choose calculation mode from the four available options.

2

Enter the date(s) using the date picker fields.

3

Click Calculate to get instant results with detailed breakdown.

4

View complete details including weeks, months, hours, and more.

📊 Calculation Modes

  • Days Between: Calculate exact days between two dates
  • Business Days: Count working days excluding weekends
  • Add Days: Find future date by adding days
  • Subtract Days: Find past date by subtracting days

💡 Common Uses

  • Calculate project timelines and deadlines
  • Plan events and schedule activities
  • Track business days for contracts
  • Determine delivery or shipping dates
  • Calculate vacation or leave duration
1

Choose calculation mode from the four available options.

2

Enter the date(s) using the date picker fields.

3

Click Calculate to get instant results with detailed breakdown.

4

View complete details including weeks, months, hours, and more.

How to Use the Days Between Calculator

  1. Select Mode: Choose between Days Between, Business Days, Add Days, or Subtract Days.
  2. Pick Your Dates: Enter the start and end dates using the calendar picker to calculate days between two dates.
  3. Calculate: Click the green "Calculate Days" button to see the duration immediately.
  4. Review Breakdown: See the total count in days, weeks, months, and even total hours or minutes.
  5. History Tracking: Access your previous results in the Calculation History section for easy reference.

Professional Ways to Calculate Days

  • Business Day Counter: Easily calculate business days by excluding weekends to track project deadlines and contract timelines.
  • Duration Analysis: Get a detailed breakdown of days between dates including the exact number of weeks and months.
  • Date Shifting: Use the "Add" or "Subtract" features to determine delivery dates or find past historical dates.
  • Project Planning: Perfect for managers who need to calculate days for schedule activities or vacation durations.
  • Accuracy & Privacy: All calculations are 100% private and processed in your browser—no date data is ever stored on our servers.

This tool may interest you

Age Calculator: Need to know exactly how many years, months, and days have passed since a specific birth date? Try our Age Calculator for a personalized time breakdown.

FAQ

1. Does the calculator include the end date?

By default, the Days Between Calculator measures the duration between two points. You can manually adjust your planning if you need to include both the start and end day as full working days.

2. How do I calculate business days only?

Simply select the "Business Days" tab. This mode automatically filters out Saturdays and Sundays to give you a precise count of working days.

3. Can I calculate the time until a future event?

Yes, by setting today as the "Start Date" and your event as the "End Date," you can see the exact countdown in days, hours, and minutes.

Note: This tool is ideal for determining shipping dates, contract durations, and personal milestones. It accounts for leap years to ensure your days between two dates calculation is always accurate.