Michael,
Yes, I actually do understand how you date your posts, and I think your convention makes as much sense as any other. That's not (at least directly) what I was commenting about.
Also, I gave the date and time here in California only as a "rock solid" reference point for my other comments.
What I was commenting about is that the Saturday post says that they arrived back at their lodging "last night" just before midnight local time in Kingman, AZ. The "reasonable man" would suppose that "last night" in a Saturday post refers to Friday. My perplexity was that, at the time when I was posting, it was still before 11:00 PM, Friday in Kingman, AZ.
I take it then that "last night" in that "Saturday" post actually refers to Thursday night?
Does a show report for a show in Las Vegas, NV, labeled "Saturday", report on events that occured on Thursday, Friday, or Saturday, Las Vegas time, when it uses the term "today"?
Please don't take this as criticism. I greatly value the things I learn on this site, and the effort you put into sharing all this with us. I'm just a little confused about which side of the Twilight Zone I'm on.