Will Excel be running at all times?
Will the workbook with the macros be open at all times?
A macro can be run at a certain time using the OnTime method but Excel and
the workbook must be open.
Alternative..................
Task Scheduler to start Excel at a given time with the workbook to open and
Workbook_Open code to do the macro work is one method.
You would not have to use OnTime method.
Gord Dibben MS Excel MVP