Gennady Padalka, who has spent 879 days in space over 5 missions, became the man who spent the most time in space when he surpassed, on 28 June 2015, the record of Sergei Krikalev who spent 803 days, 9 hours and 39 minutes, or 2.2 years in space over the span of six spaceflights on Soyuz, the Space Shuttle, Mir, and the International Space Station. Currently, second is Yuri Malenchenko who spent 828 days in space on six spaceflights.
who has the record for the longest time in space
Gennady Padalka