We had that a couple of weeks ago when our clocks changed, thought this might be the ticket for our chronic EW. Lasted about 1 day then he reverted back to his usual 4:30/5 something business, like his body clock can actually SEE the clock. Arrgh. Hard-wiring, I am almost sure of it now. Yet I still come here to tweak and get support lol. I just don't give up that easily.
Long may it last ladies!!!