Can someone explain the misunderstanding about the meeting hour to me please?

He went there on his own, or maybe forgotten

seems that he came at 11am thinking it started at 5am but it really started at 5pm or vise versa

?

Maybe the way that they say times in Japanese, it is easy to mix up 5 and 11? Like they sound similar or something? Does anyone speak Japanese well enough to know if that is a possibility? Cause even after he said that it the guy was early, it starts at 5, the guy said, no, he was late because it was already 11....

11 in japanese is ju-ichi and 5 (like 1700 hrs) is ju-shichi. Its easy to confuse between the two in rapidfire, conversational japanese. So like Hiro said Kei just misheard and landed on his doorstep 6 hours early ╮(￣▽￣)╭

Oh ok I see, thank you all!

The translator should have made a note regarding that, but the translation for chapter 3 is rather weird as a whole. I guess it was done in a rush(?) It was quite disruptive (￣∇￣")

Thank you!