I'm in the Eastern time zone USA, running on a cable broadband connection, and my sync log time stamp was 19:38:52, so probably prime time for US. I had started the sync more than an hour before - I did not make a note of the exact time, but I know it was before the network evening news started, which is 18:30 here.
My cable connection was not the issue, as there was no lag on any other site last evening.
Tony, ACOM had major issues yesterday - corporation never posted on this site, but there was a long thread on their Facebook page. My sync was several hours after those issues had been resolved.