Quote Originally Posted by DoubleDutch View Post
Isn't it 2 weeks? Or 4? Why not just say "I'm leaving in 3 weeks"


Yeah, but how many fortnights is that? English people don't do weeks, they measure time in fortnights.
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A fortnight is "two weeks".

So I'm going to Bali in 12 weeks, which is three (3) fortnight.