Dropdown list tracking

I am using Excel as a time tracking spreadsheet.

. I have 15 dropdown tasks items that are being used.

. The dropdown items are stored in worksheet 2 and the main spreadsheet is in
Worksheet 1. I have it set up so I can access the dropdown tasks from worksheet 1, even though they are stored on worksheet 2 in column A.

. In the main tracking worksheet 1, I have the date in Column A, and from the
15 dropdown tasks, I pick one of them that describes the task I am performing.

I want to set up a worksheet 3 with the following information:
. Cumulative totals of time for each of the dropdown tasks.
. A grand total for time of all of the dropdown tasks.

May we see the worksheet, or at least a mock-up?