The internal structure of a chloroplast. The light-independent reactions of photosynthesis are chemical reactions that convert carbon dioxide and other compounds into glucose. These reactions occur in the stroma, the fluid-filled area of a chloroplast outside of the thylakoid membranes.
The Excel TIME function is a built-in function that allows you to create a time with individual hour, minute, and second components. The TIME function is useful when you want to assemble a proper time inside another formula.
As long as you have a start time and an end time, Excel will be able to count the hours between them. 1  1. Open your Excel spreadsheet. 2  2. Enter the title Total Hours in cell C1. 3  3. Enter the formula =B2-A2 and press the Enter key to display the time difference between two cells.