EasyC or Scratch? It appears the VEX has no Real Time Clock so it cannot know what the local time is. The internal timers are typically too short to simply let them operate on their own, but the last comment on this page:
leads to documentation to use EasyC to increase the range before the internal timers roll-over.
You can add an external clock module and program that and let the VEX examine the outputs from that clock. Perhaps use a conventional clock mechanism and add an LED emitter/detector pair to see when the hour or minute hand goes by.
