Not so much but yestetday i visited in 2 hours
I went after 10 at night and it didn't take long at all and it's an amazing view plus you get to go outside which is far better if a lot colder
I went on a friday evening around sunset. Didn't take long at all. Got from the entrance, through security and to the top observation deck in about in about 30 minues
I went at night, mid week. It took me about an hour to get from ground floor to observation deck.
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