This has never happened before
I thought each confirmation took 10 mins
I just requested a withdrawal from one exchange and it was deposited in another exchange with 5-10 mins
You can see the transaction here

https://blockexplorer.com/tx/de05e00844f1f7e0f5ee63528b2e1c69f7bc695cfcaf26c84d952d3fe677df74

Is this normal?