Frequently Asked Questions
How accurate is this calculator?
This calculator uses JavaScript Date objects to compute the exact difference between two dates, accounting for leap years and varying month lengths. The results are accurate to the day.
Does it include the end date?
By default, the calculation includes the end date. Check "Exclude end date" if you want to count the days between the dates without including the final day.
What's the difference between this and the Business Days Calculator?
This calculator counts all calendar days. The Business Days Calculator excludes weekends and optionally holidays, useful for project planning and deadline estimation.