This is part of a Floor 1-20 run in "The Summit", on normal difficulty.

Unfortunately, on both Boss floors, we got a level up screen after killing the last enemy instead of the completion/"floor finished" pop-up.

The actual times are:

Floor 1-10: 10m 44s - Pop-up is 13s later at 10m 57s

Floor 1-20: 23m 57s - Pop-up is 7s later at 24m 4s

So it's up to you what time you think is valid.