Possibly. Although there's also a construction in Welsh - 2.25 would "bum* munud ar hugain wedi dau", literally five minutes and twenty after two. If it's a Sussex phrase and a Welsh one, it's no wonder I can't get it out of mind :lolol:
* - for those with minds like schoolkids, that bum is...
I'm sure I have loads - as I am old. One that immediately springs to mind, and which confuses the hell out of young people, is when I'm asked the time at 2.25, say, and, out of habit, automatically reply "Five and twenty past two". It's how I learnt to tell the time many years ago but kids don't...