Days Between Dates Calculator
Quickly find out how many days, weeks, months, or years separate two dates. Great for planning events, tracking milestones, and calculating durations.
- Instant day count between any two dates
- See results in weeks, months, and years
- Option to include or exclude the end date
- Also shows hours, minutes, and seconds
Count Days Between Dates
How to Use the Days Between Dates Calculator
Enter your start date and end date using the date pickers above, then click “Calculate Days.” The calculator instantly displays the total number of days between the two dates, along with breakdowns in weeks, months, and years. Check the “Include end date” box to count both the start and end dates in the total.
About This Calculator
Our days between dates calculator handles leap years, varying month lengths, and all date edge cases automatically. All calculations happen directly in your browser — nothing is sent to any server. It is completely free, private, and works on any device.
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Frequently Asked Questions
Common questions about counting days between dates
The calculator subtracts the start date from the end date to get the total number of days. If “Include end date” is checked, it adds one extra day so both the first and last dates are counted. This is the most common way to count durations.
Yes! The calculator correctly accounts for leap years (February 29), varying month lengths, and all calendar rules. You will always get an accurate result.
The Date Difference Calculator offers more options like weekday-only counting. This Days Between Dates calculator is a simplified version focused purely on counting total days with a detailed breakdown into hours, minutes, and seconds.
Absolutely. The calculator works with any date your browser supports, typically ranging from the year 0001 to 9999. You can calculate the days between historical dates or plan far into the future.