It's a quarter ...

No. It's three minutes past ten or It's ten oh three,

When I say "It' five oh ten."
Does it mean it's ten minutes past five."
And what about "It's ten minutes to five"
Is it correct to say" It's five oh ten minutes"

And thank you

It's not correct to say 'five oh ten'.
You can say 'five oh nine' - you are just reading out the figures '5.09'
But there is no 'oh' before the '10', so you just say 'five ten'
Saying times like that would be suitable for a railway station announcement or a similar situation. In conversation you would say 'ten past five', 'ten to five', or 'nine minutes past five' if you need to be

Okay.
Thank you very much.

JumanahAnd what about "It's ten minutes to five"

It's ten to five or It's nine fifty.

[Contents deleted by moderator: entered by a banned user]

This is what I understand from that. It's ten eighteen. It's 10:18. That is a quarter past ten (15) and 3. 15 + 3 = 18.

Is it correct to say " It's thirty after one."
And " It's fifty after one."

It's not natural.

Do you mean it's grammatically correct but it's not natural?