Heck of a coincidence that all of these dates align on the Qclock tomorrow.
Thought occurred to me that Q might be referencing positions on the Qclock. I’ve noticed that drops seem to congregate in 15 minute increments. [30] = mirror, 5-steps ahead, POTUS says ‘15 minutes’
Note that drops from 2017 will line up 15 minutes ahead on the Qclock in 2020.