Why the return period of Apple Canada is half of that in the USA?

Exchange rate.

But seriously, Apple Canada's return period is actually 15 days for online and retail while the American one is 14 days for both online and retail.

 

I don't know where you read that, but the return period in the US has always been 14 days.

 

Like money, apparently the American day is worth more too. Only in this case, it works out in favor of Canada. Hmm... somebody needs to get working on that exchange rate.

 

Perhaps you heard about the extended return period during the Christmas holiday season? There is typically a return period for items purchased in December that expires in early January, to allow gift recipients time to return/exchange the gift. Many retailers do this. During other times of the year, it's 14 days, as the others have noted.

 

Agreed with the 14-day period with the AS. I've purchased in the past year from Apple's Amazon Store - rMBPs and iMPs - 30 days there, shipped directly from Apple.