Re: September 13, 2017
i think you mean iso date format rather than unix.
if you're going to put the day after the month then the year should go before them both.
while we're on the subject, iso time format should also be preferred. am and pm are anathema in my book.
date-time should always be in gmt, obviously. (i don't refer to it as utc as i'm from greenwich). zulu rules, ok.