Does a form timer maintain state during sleep/hibernate?-Collection of common programming errors

If I have an event that starts a timer with an interval of say, 30 minutes, and 15 minutes later, the computer the app is running on sleeps (Suspend to RAM) or Hibernates (Suspend to Disk), and is brought back online after ten minutes, will the timer raise its Tick event in 5 minutes (30 minutes REAL time from the start) or 15 minutes (30 minutes RUNTIME from the start)?