usa family visitor visa limit

[rg808253]

hello dear

My mother got 5 year multiple usa visa she is pakistani national, upon her first entry in 2015 entry po officer put 6 months permission on her passport. but this year they did not put any stay limit on her passport on entry.

Now this year 2016 she is coming back after 2 days less than 6 months stay, but staying there 182 days.

it is very confusing that what is the maximum stay on visit visa is it 6 months or 180 days??

thanks in advance

[noajthan]

No need for multiple posts.