I think that the overall network is generating the same amount of blocks regardless of the difficulty; the difficulty is intended so that the network generates a block in a relatively constant amount of time. Therefore, this confirmation time should always be around the same.
Satoshi or anyone else can correct me if I’m wrong 🙂
Right, the difficulty adjustment is trying to keep it so the network as a whole generates an average of 6 blocks per hour. The time for your block to mature will always be around 20 hours.
The recent adjustment put us back to close to 6 blocks per hour again.
There’s a site where you can see the time between blocks, and since block 68545, it’s been more like 10 minutes per block:
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