Since Coruscant and the Jedi Temple are simply... very very big locations with lots of smaller points of interest attached to locations, there can be multiple threads in the same timeslot in the same location, granted that they are tied to different points of interest.
For instance, there can be two Day 1, Late Morning threads in the Galactic Market, given that one of them is located in the Dealer's Den cantina, which is a Point of Interest in that Location. Same with dormitories and other locations.
We are doing it this way for Coruscant to keep a more sane number on the amount of subforums for locations, given the numerous places of interest that exists there.