What the site tries to do well
The goal is to make date math understandable. That is why the site includes exclusive and inclusive counting, business-day estimates, weeks-and-days summaries, and readable guides about when each method makes sense.
Many visitors do not actually want “the number of days between two dates” in isolation. They want to know whether a lease ends on a weekday, how many workdays remain before a deadline, or what exact date lands 45 days after a signed agreement. The site is designed around those real questions.
Why there are guide pages
Date tools are easy to make look thin if they only offer inputs and outputs. The supporting guide pages explain the logic behind the calculations, common counting mistakes, and the difference between standard day counts and business-day estimates.