I guess there would be no equivalent in Welsh of the form: 'five-o-six', 'seven-o-two', 'eight-o-four' either?
All this has reminded me that my great aunt used to say things like 'five-and-twenty past two', 'five-and-twenty to four' and 'eight-and-twenty past'. Oddly nobody else in the family did, that I can remember. Now I think about it, she might have said things like 'five-and-thirty past' instead of using 'to'. She had real problems with the arrival of decimalisation and the metric system.