Collections are running GREAT, but one minor 'oh shoot!'

One of my collection is executed once a day.  I would really like it done at
8AM. Problem: when I go edit a collection at say 2PM, the collection
re-reads right away (that's OK) but from then on it keeps reading at 2PM.
Is there a command line (cron-able thingie) that I can run to refresh the
cycle every day at 8AM?


Thanks!
Steve Stamper
Grand Rapids, Michigan