Question: who was the fastest person to climb mount everest
Answer: Record name Record Owner Nation Date Ref Fastest ascent from Everest South Base Camp with supplemental oxygen 8 hours and 10 minutes Pemba Dorje Nepal 2004 - 05 - 21 ! May 21 , 2004 Fastest ascent from Everest South Base Camp without supplemental oxygen 20 hours and 24 minutes Aman Kumar Sinha India 1998 - 10 - 17 ! October 17 , 2008 Fastest ascent without supplemental oxygen and fastest ascent from Everest North Base Camp 16 hours and 45 minutes Hans Kammerlander Italy 1996 - 5 - 24 ! May 24 , 1996 Longest stay on the summit 21 hours Babu Chiri Sherpa Nepal 1999 - 05 - 06 ! May 6 , 1999