is ms is of 1year or of 2 year in usa

Usually it is 2 years. However, some programs are of 1-year duration.

Hi, Most masters are 2 years in duration. There are 1 year master courses available but those are for specific courses and in specific universities. For further details, please visit https://usa.shiksha.com Hope my answer has solved your query. If it has, kindly mark it as best answer.