In The Flash 5x04, Ralph memes (from 5x03) were stated as happened "a few weeks ago". The gap between 5x03 and 5x04 should be a month at most. Also, there's a two-week gap between 5x04 and 5x05. Finally, it appears that Chronicles of Cisco post 86 takes place after 5x05.
Edit: there's a week in...