Monitoring long times

which isthe best optionto monitora processtimeeachhour throughout the whole week?

I am making a vi that have to do the next:

* Monitor every hour the status of a device,

* When the time has arrived, write down to the data base the status of the device

Coul you tell me which is the best option to monitor this kind of time (hours)? And whic is the best option to implement it, I am using 2 while loops, one to monitor the status of the device and other to monitor the time. In this way, when the time has arrived then I write to the data base.

Thanks