Which clinical hours are specifically required for US nurses?

[OffTheGrid123]

I'm a nursing student from Italy, which is where I'm studying at the moment. I've gotten past my first year and have just finished clinicals in general/emergency surgery (I'll start emergency medicine clinicals in a few days). As far as I know US nursing students also get clinicals in community nursing, pediatrics, obstetrics and gynecology, which we don't get here (we study it in year but stopped doing clinicals in those areas a few years ago). Since I'd like to work in the US as an RN after I graduate, which wards/areas do I specifically need to get experience in, and how many hours exactly? Also, does every single state require experience in these areas or is experience in med/surg, OR, ICU and ER (which is what we get here in 3 years of nursing university, a total of 1800 hours of clinicals) enough depending on the state? (if it helps, the states I'd be mainly interested in are New York, Texas, Wyoming, Montana, Idaho, South Dakota and Alaska)

Thank you in advance, I ask because I might be able to require the specific clinical hours that I need in my second year of nursing school, otherwise I'd have to request them after I graduate and hopefully have them granted to me (also, as far as you know, do US colleges/hospitals/agencies offer opportunities for foreign nurses to get their clinical hours so that they may be fully equivalent educationally speaking and take NCLEX?).

A specific list with hours for each area would also be highly appreciated.