smallest time period / mid length time period / longest time period.
day/month/year, absolutely fucking sensible.
but hey, i guess when USA'ians (Bolivians are Americans too, but even they are sensible enough to use metric) learn their ACB's at school that they live 3 yards, 2 miles and 7 inches away from, that they start at 45 seconds, 8 hours and 30mins in the morning, you can kind of forgive them for their archaic backwards ways.
and yes, we say "1st of October" here in places other than the UK too, because we speak English, not some foreign sub-dialect that uses incorrect grammar and spelling.
hell, even if the syntax was acceptable, you'd still be missing the letter "s" and the word "day" from "Octobers' 1st Day" for it to be anywhere near a coherent statement.