Time Management Tool

I have 143 macros, but I put 8 of them here b/c the post would not go through with all of them. I couldn't fit all of them on an attachment either b/c the file size was too big. However, I have this goal I have been working on for the last three months on the weekends and the last part.

I would like help with a macro that I can add onto the ones I have. I would like the macro to activate and cause a message box to appear when I open the excel doc. I would like also to be able to activate the message box and its associated macros after the document has been opened.

I would like the message box to have
- Message “The Current Time is (Macro puts current computer time here)”
- Question “How much time do you have?” then beneath this question
- Blank field labeled Hour to give answer
- Blank field labeled Minute to give answer

Depending on the current time on the computer as well as the hour and minute entered, a macro with a matching title from the list below will be selected that fits that criterion. For example, let’s say it is 5:30am and I entered 1 hr and 15 min in the empty fields of the message box. As a result the macro named “Sub Hour1Min15time530am” will be activated. Also due to the fact that the macros I have are in 15 min intervals the code would need to round to the nearest time, so if it was 5:33am when I ran the code the macro would default to 5:30am whereas if it was 5:39am when I ran the code the macro would default to 5:45am.