Check information on the pool's web site.
Minertopia :Payouts are made automatically every 3 hours for all balances above 0.01, or 0.001 on Sunday.

Zpool.ca: Payouts are made automatically every 12 hours for all balances above 0.01 and balances more than 0.001 are paid on Sunday.

Non-BTC payouts depend on that coin being mined as your BTC balance is traded internally by our system to your currency of choice. If we have not or are not mining that currency your payouts will be delayed until the pool has mined the blocks for you to get paid. If you notice in the pools status that the currency is red, it means there is not sufficient amount of the currency to pay miner(s). It's recommended to use BTC as any other coin could be removed at anytime and payouts will not occur.