Once you request a withdrawal, the transaction goes through approval. Usually, this will only take a few hours.
During this time, you can see the transaction under "Pending Withdrawals" in the "Withdrawals" menu in your account overview. In some cases, withdrawal approvals might take up to 24 hours.
As soon as the transaction is approved, you will be notified via email with additional information regarding the transaction. Once approved, the funds are sent to the payment method you chose upon requesting the withdrawal.
Please note that processing time depends on the payment method selected for the withdrawal.