Guardian drama timeline: Kunlun in the past

[xparrot]

I've been trying to work out the specifics about just how long Zhao Yunlan was back in time in the drama and what he did there, as there is conflicting data and interpretations. So here's my best guesses based on what we see, in excruciating detail:

concerning Zhao Yunlan's excellent adventure

TL;DR: The show generally implies he was back there for about 24 hours, but there are enough contradictions and unexplained elements to leave a lot of room for speculation!