Is there a limit on how many days a visitor (B2) can stay in US in a calendar year

[rsuravarapu]

My parents have multiple entry visa and they are here in US and planning to return back to India before 6months from their arrival date. Can they come back in a couple months and stay for 6 more months, or is the 180 day limit on B2 also applies in a calendar year, which means they have to stay out of US for 6 months before returning back?
Thank you and appreciate your response.

[newacct]

There is no limit of number of days in a year. Of course, the more often they visit, the more likely it is that the officer may deny entry for immigrant intent, or admit them for a shorter period.

[JoeF]

It is never about the calendar year. A visitor should be more at home than in the US. Traveling to the US too soon after a long stay here raises red flags, and can result in a denial of entry.