Extracting From One Database To Another Automatically Hourly

For a GPS utility project we are planning on extracting certain attributes from a huge "GPS Raw Data" read only database which we have access to containing GPS data from several years from several devices attached to vehicles.

The data is time stamped. Where the time gap between pieces of data is more than 10 minutes, a new trip is instance is assumed and in our write access "Trip" database we create a new instance for the data clump with a new trip id along with the time range of the data.
 The process is to be run hourly to update the "Trip" database with new trips and append to overlapping trips.
 We've some questions:
a) Is it easy to read from one database and write into another in c# hourly
b) How would one go about running a C# program automatically every hour on the server?
c) Is there a better way to do this than an hourly update? (dynamically perhaps??)
d) When querying the database and comparing the time stamps, how for instance would we go about identifying a 10 minute gap when the time/date is in the format "22/12/2007 11:25:00". I can't get my head around actually writing this - it's probably ridiculously simple