The Galaxy Cashier deposit platform never closes. You can deposit at any time of day, any day of the year.
While your requests can be submitted anytime you would like, please keep in mind that when using the person-to-person (P2P) method, deposits can be delayed due to agency business hours. In such cases, you may need to wait several hours for the deposit to be approved.
These types of delays will never be an issue when using Bitcoin or credit cards, as these methods are approved 24 hours a day.