-/* Revision 1.12 1998/04/09 18:40:13 curt
-/* We had unified some of the platform disparate time handling code, and
-/* there was a bug in timesum() which calculated a new time stamp based on
-/* the current time stamp + offset. This hosed the periodic event processing
-/* logic because you'd never arrive at the time the event was scheduled for.
-/* Sky updates and lighting changes are handled via this event mechanism so
-/* they never changed ... it is fixed now.