Date Time Calculator is a free online tool for calculations that involves date and time. Sometimes, it's difficult even to just add up time like 5:30 + 8:45 + 6:25. How much more finding the duration between 7:13 am to 5:43 pm.

These are just some of the time calculations this site is able to provide help.

Moreover, dealing with dates are headache sometimes. Just try to figure out how many weeks ago is December 13, 2005. There's a high probability that a very brilliant mind can answer this almost instantly. However, for common people like me, I need a Date Time Calculator.

If you are dealing with date and time calculations, you can check out tools available on this website.