I wear a Casio Rangeman that auto syncs every night. Checking against www.time.gov, it's been perfectly in sync every time (not even a noticeable fraction off).I also use an online atomic clock for your sales.
Over the past few months (since bombing out on all my roadside attempts at the 3pm EST sales), I've been searching for internet hotspots around my AO.
Found one where I usually am around 5pm EST. I partially attribute my decent placings in the 5pm preorders to the connection from this location, and obviously, the less frantic/hectic rush in the preorders (although some of the preorders still show dozens of posts within the first minute).
Still knew my chances weren't good with 3pm sales of 5 - 10 pieces.
With the announcement of a sale with a batch of 40, I made some changes today specifically to place me at my hotspot just before 3pm (instead of the usual ~5pm). Casio Rangeman was checked against time.gov and was spot on this morning.
Ran a last minute Speedtest to verify ping, upload and download speeds and all were good. Attempting to load any page on BF was where I realized all the careful preparations might be for naught. Lol.
Oh well, better luck next time, and congrats to everyone who managed to snag one!