As long as you have arrived 15 minutes prior to the start of your exam, the proctor should be able to complete all the pre-exam steps. If you arrive later than this, your exam time may be impacted. Your exam duration is exactly 23 hours and 45 minutes from the scheduled start time for OSCP, 47 hours and 45 minutes for OSWE, OSEP and OSED, and 1 hour and 30 minutes for KLCP.