When rewards?

If you were to delegate your ADA during Epoch 0, your Stake will be active and the Pool will be minting blocks in Epoch 2. The Rewards will be calculated in Epoch 3 and the very first Rewards will be delivered to the same wallet at the beginning of Epoch 4. Thereafter, The Rewards will be paid at the beginning of each new Epoch. Note that Each Epoch is 5days and very first rewards may take between 15-20 days.