The time is dependent upon timezone. Where I am today, it appears he tweeted at 6:00:37 AM.  Look at Q(drop) and T(rump)600. 6AM & 6(00) also are in line with the date, the 6th (6/6/19 & 8/6/19).  He also retweeted MM’s statement just prior to the DDay75 retweet.  This makes it look like a msg to MM.  The DDay retweet is odd.  Idk...Maybe you can make something of this.