Calculate Number Of Days Between Two Dates

Just a very quick one today.

I recently needed to find the number of days between two dates. I thought this would be easy in Emacs, and indeed it was, but as with most things in Emacs, you need to know exactly what you're doing. Here is the method I used:

M-x =calendar=

Navigate to the start date

Set mark

Navigate to the end date

M-x =calendar-count-days-region=

OR

M-=

Note that the count is inclusive of the mark, the documentation says:

It is bound to M-=.

Count the number of days (inclusive) between point and the mark.

That is all. 🙂