>I want to do something as:
>
>If thisDatetime > datetime()
>do event01_start
>
>---------------------------------------------------
>
>How can I store value to thisDatetime ?
>
>Can I just use "01/01/2009" 15:35" ?
>
>system is set to 24hs

thisDateTime = datetime(2009,1,1,15,35)
If m.thisDatetime > datetime()
  do event01_start

However be carefull where you use it. Once passed it would be always true. Maybe something like:
(these are table fields in fact, no?)

thisDateTime = datetime(2009,1,1,15,35)
event01_completed = .f. 
If (m.thisDatetime > datetime() and !event01_completed)
  do event01_start
  event01_completed = .t. && possibly set in event01_start routine

Cetin