Days Between Dates
Use this calculator to quickly find the number of days between any two calendar dates. It’s perfect for planning events, measuring project durations, or tracking deadlines. Simply enter the start and end dates, and get the exact number of days in between.
Date Difference Calculator
Days Between Dates Formula
$$\text{Days Between} = |\text{End Date} – \text{Start Date}|$$
To calculate the number of days between two dates, subtract the start date from the end date and take the absolute value to ensure a positive result. Time zones and leap years are automatically accounted for in most modern date libraries.
This calculator is commonly used in scheduling, event planning, and legal or financial time tracking. For example, you can calculate how many days are left until a due date or how many days have passed since a specific event. It supports any valid calendar dates, including leap years and month/year boundaries. The calculation assumes each day is 24 hours and ignores time-of-day values unless specified.