How would you say:
"I'm on holiday from 1st September"

Nice to see you back, Shona. I'd say it probably one of two ways: if I wanted to impart generalized info., I'd say I'm going on vacation (around) the first of September. To be specific, I'd say I'm leaving on vacation on September first, or, on the first day of September. Do you-all really say first September? Hmm--now that you've made me think about it, I realize I might say Sept. the first.

Another difference I've become aware of: we say self-rising flour, and you-all say self-raising. When we get a salary increase, it's a raise. When you do, apparently it's a rise. I thought it interesting that the same 2 words were reversed in different contexts.