def PacificTime(now):
 now -= (8 * 3600)
 if IsPacificDST(now):
  now += 3600
 return now

def PacificTime ( now ) : now -= ( 8 * 3600 ) if IsPacificDST ( now ) : now += 3600 return now
helper to return the number of seconds between utc and pacific time .