Days Between
Dates Calculator
Find the exact number of days, weeks, months, and years between any two dates.
Calculate Date Difference
How to Calculate Days Between Two Dates
To find the number of days between two dates, simply enter your start and end dates above and click Calculate. Our calculator accounts for all months having different lengths, leap years, and gives you the result in days, weeks, months, and years simultaneously.
Common Uses
This calculator is commonly used to find how long ago an event happened, calculate the duration of a project, find how many days until a deadline, determine someone's age in days, or calculate the time between two historical events.
Does It Count the Start or End Date?
Our calculator counts the difference between the start and end date — so from January 1 to January 5 gives 4 days. If you want to include both the start and end date in your count, simply add 1 to the result.