Days Between Dates Calculator
Accurately measure duration in days, weeks, and months
How to Calculate Days Between Two Dates
Calculating the duration between dates is essential for project management, event planning, and tracking personal milestones. Our Days Calculator provides a quick way to find the exact count of days, weeks, months, and even years between any two points in time.
Practical Examples
- Project Deadlines: If a project starts on January 1st and is due on March 15th, you have exactly 73 days (or 10 weeks and 3 days) to complete it.
- Wedding Countdown: If today is June 1st and your wedding is October 10th, you have 131 days left.
- Subscription Tracking: Calculate the exact length of a free trial or a service contract term.
Inclusive vs. Exclusive Dates
Standard date calculations typically subtract the start date from the end date. However, in many business scenarios (like rental agreements or employment contracts), you need to include the final day in the count. Our calculator allows you to toggle this "Include end date" feature with a single click.
Common Units of Measurement
While "days" is the most common metric, we also break down the duration into:
- Weeks: Groups of 7 days.
- Months: Calendar months (accounting for 28, 30, or 31 days).
- Leap Years: Our algorithm automatically accounts for February 29th during leap years.