# Slower confirmations in z9? **URL:** \ **Category:** zcashd client\ **Created:** [August 28, 2016, 12:51am UTC](https://forum.zcashcommunity.com/t/slower-confirmations-in-z9/1314 "2016-08-28T00:51:42Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![zawy](https://sea2.discourse-cdn.com/zcash/user_avatar/forum.zcashcommunity.com/zawy/32/11892_2.png) [@zawy](https://forum.zcashcommunity.com/u/zawy)\ **Post date:** [August 28, 2016, 12:51am UTC](https://forum.zcashcommunity.com/t/slower-confirmations-in-z9/1314/1 "2016-08-28T00:51:42Z")
Isn’t it taking a lot longer to get 100 confirmation in z9 than it did in z8? It looks like about 6 hours instead of 30 minutes(?) . ---
**Author:** ![daira](https://sea2.discourse-cdn.com/zcash/user_avatar/forum.zcashcommunity.com/daira/32/43253_2.png) [@daira](https://forum.zcashcommunity.com/u/daira)\ **Post date:** [August 28, 2016, 1:14am UTC](https://forum.zcashcommunity.com/t/slower-confirmations-in-z9/1314/2 "2016-08-28T01:14:52Z")
The expected time for 100 confirmations is 250 minutes, i.e. a little more than 4 hours. If it was previously taking 30m then that was a problem with the difficulty adjustment. I don’t think there were any explicit fixes to difficulty adjustment from z8 to z9, but the z8 testnet was having a major problem with connections ( [Decrease MAX\_HEADERS\_RESULTS · Issue #1289 · zcash/zcash · GitHub](https://github.com/zcash/zcash/issues/1289) ) so I would not be surprised if there were too few miners for the difficulty to be stable. ---
**Author:** ![hud](https://avatars.discourse-cdn.com/v4/letter/h/ce73a5/32.png) [@hud](https://forum.zcashcommunity.com/u/hud)\ **Post date:** [August 28, 2016, 3:18am UTC](https://forum.zcashcommunity.com/t/slower-confirmations-in-z9/1314/3 "2016-08-28T03:18:16Z")
This is what difficulty supposed to be. You can’t expect 100 blocks in 30 minutes when 1.0 launched because it would be classified as instamine. I believe blocks was mined much faster in previous alpha versions for testing purpose.