In most cases, payments will be transferred to your bank within 2 business days when you have Automatic Transfers enabled in your PayPal account.
For those times when you need your money faster, PayPal also offers an Instant Deposit option.
The bank you use can also affect how long it takes for you to receive your funds. National banks will tend to be the fastest, whereas smaller, more regional banks and credit unions can take longer to process the payment on their end, which many result in an additional day or more of overall processing time.