To be fair she said tomorrow at 12pm sharp Like the date tomorrow for Gwangho and her tom...

Yeah, I don't know how they managed to fumble that part.
"Let's meet tomorrow!" Knowing fully that her time skips are about several days apart while his are several weeks apart.
A date should've been specified, but then again, there's only so much they can converse about thoroughly during sex.

I was expecting at the very least she would state what date, what month but they were having sex so...