My friend and I just speedran the game and we can't send it because we didn't know what the in-game time was.

The console version doesn't have a In-Game timer so you should probably just use a stop watch.

The answer to your question can be found when you press the 'view rules' button for Any% Console:

"Since these consoles have no In-Game Timer, no IGT is to be submitted. Use Real Time only. Because of this, timing may stop at the start of the final cutscene, rather than the end."