When do my limits replenish?
Coinbase limits for your account will always be displayed on your verifications page.
Your remaining weekly limits will also be displayed on the right-hand side of the page when you go to buy or sell digital currency, and may change depending on the payment method (for buys) or withdrawal type (for sells).
Your weekly limits will replenish at a rate of 1/168th of the transaction amount per hour for the 7 days immediately following your purchase or sale. This works out so that a week after the transaction, the amount of your limit that was used will be fully restored.