US stay can be extended if we visit Canada during US stay?

US stay can be extended if we visit Canada during US stay? - Splashing Niagara Falls and yacht sailing on river

My father has 1 year B1/B2(Visitor) visa. (Please dont ask why one year, its longggggg story). I am planing to apply his Canada visitor visa.

When they will enter to US, on port of entry, generally officer enter date after 6 months when you enter. For example, if your date of entry is June, 30, then you can stay till December, 30. (Generally, its 6 months, there might be case, where they gave less time, but I am not aware about that.)

My question is, if they visit Canada in November, and come back before December 30, on port of entry, they will get new date till they can stay? like they get next year May date? or Date will be same December, 30?






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US stay can be extended if we visit Canada during US stay? - View Of Niagara Falls And The Cityscape At Night
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US stay can be extended if we visit Canada during US stay? - Young African American male tourist pointing away while searching for direction with diverse fiends standing in railway station terminal with paper map in hands





How To Extend Visitor Visa After 6 Months In Canada?




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