Is it possible to schedule macros to run at certain times?

Please note that I realise you could set a time in your
workbook (=NOW()) and use this number to be the variable
that will start the macros but if nothing is being
calculated in the spreadsheet then the time will not
update.

Is there a way to have the time update regardless if a
calculation is taking place or is there another way that
it could be done?


thanks
Mike