Hi, how are you? Well, I'm not a native english speaker, but I think that the first one it's more common because it's more easy, at least for me, to say thirteen hundred, than one thousand and three hundred haha. But it's funny, because in portuguese at least, we only say something simmilar to 'one thousand and three hundred', and doesnt' exists the first option. I think it's just for convenience

it is an American thing....British people always use thousands.

Lady Hacer,

I don't think there is really a reason or that one is more common than the other. I think in some countries or dialects one form is more common than the other. For example, I am English and I never say 13 hundred.

I think it depends on where you are. In the US, we usually say "Thirteen Hundred." When I went to the Philippines, they found it strange. They are more used to "One Thousand Three Hundred."