Hi Steven!

I'd be happy to help you with this Excel question. Here's how you can subtract one hour from a cell and input it into another cell:

1. First, select the cell where you want to input the converted time (in your example, this would be cell I1).
2. Next, type the following formula into the formula bar:
   Formula:

   =E1-1/24 

3. Press Enter on your keyboard to apply the formula. This will subtract one hour (1/24 of a day) from the time in cell E1.
4. The result should now show the time in Central Standard Time.

To format the time in military time, follow these steps:

1. Right-click on the cell with the converted time (cell I1).
2. Select "Format Cells" from the drop-down menu.
3. In the Format Cells dialog box, select "Custom" from the Category list.
4. In the Type field, enter the following format code: hh:mm
5. Click "OK" to apply the formatting.

This will format the time in military time (hours:minutes).