Yes. Transfers between Betterment Cash Reserve and one of your clients’ investment goals generally takes up to 2 business days.
In the reverse situation, if you or your client transfer from one of their investment goals to Betterment Cash Reserve, it generally takes up to 2 business days. Transactions can be subject to processing delays in certain circumstances.
Note that bank holidays do not count as business days. You can see a list of bank holidays here.