how many days between dates

To calculate the number of days between two dates, you subtract the start date from the end date. The process considers leap years (which add an extra day every four years) and the varying lengths of different months. For example, if you want the number of days between June 1 and June 10, you subtract June 1 from June 10, which equals 9 days. If you want to include the end date in the count, add 1 day to the total. More complex manual calculations involve converting the difference in years, months, and days into a single day count, accounting for leap years by using an average of 365.25 days per year. The general rule for weeks is to divide the total number of days by 7. Online calculators can automate this process, providing accurate counts of days, weeks, months, and years between two dates, including or excluding the end date as needed, handling all calendar intricacies automatically.