In the blockchain, there is no average time to confirm a transaction when is finished. It depends on the miner who packs the block.
Each currency will have different "block confirmation number" so it is impossible to guarantee the correct arrival time.
If your digital assets did not arrive within 24 hours, it may be due to network congestion and the sudden increase of transactions.
If you want to know your transaction progress, you can copy your wallet address and paste it into the blockchain browser to see the status.
[ACE Ace Exchange] The number of block confirmations in each currency can be found in FAQ: Are there any limitations of deposit and withdrawal for cryptocurrency?
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