Hi Guys
I have a Column A with dates & times eg: ( 2019/08/11 06:00 ) running, for example, continues for a number of days.
In Column B I would like to show a numerical number starting from 1 .... every 15min. So example from 19:12 to 19:27 column B with show a 1 then from 19:28 to 19:43 will...