I live in Japan and my regular play time is during these hours. I can absolutely 100% confirm the rest of these complaints that honor is not counting during late night hours. I have noticed this the last two weeks and just this last week my honor is off by over 20k of what my HK calculator (with diminishing returns) had me tallied at. You don’t need an addon to see the difference either. It’s clear when you PvP during the morning hours that none of that honor is factoring In at any point.
This has completely broken my ability to honor farm because my play time almost always falls in these early morning hours.
Blizzard, please fix this. It is not just a visual error. You are making the game literally unplayable for those of us in different time zones.