Thanks. I've removed the NTP NAT entry, but alas it still doesn't sync.
O. M. G. I feel like such a !@%$#@ idiot. I was collecting screen shots of NAT and firewall status for the thread, and when I went to LAN rules there was a block for NTP on *. It was part of a bunch of rules I had setup to block Alexa at one point when I had Googled what ports it uses, as my friend kept annoying me asking the Echo to play stupid crap. I totally forgot I had done that.
Removed the rule and wouldn't you know it, time sync'd :) God I feel stupid lol. Thanks!