How 二週間 can be used to say "In two weeks..."


How can one use 二週間 to say, "In two weeks from today, I am going to Tokyo."

I am confused on how one would use particles here and I need some help.




If it were me, I would say

> 今日から二週間後[に]、東京へ行く。

I don't think 後 is usually considered a particle (助詞).

二週間 = a _duration_ of two weeks. So you need to express after that duration
has passed.

