If Where's My Refund? shows "Refund Sent" and a date, it could take up to 5 days for it to be reflected in your bank account, it all depends on the bank, how and when funds are credited. This does exclude weekends and holidays.
If you have additional questions you can contact the IRS directly at-
IRS: 800-829-1040 hours 7 AM - 7 PM local time Mon-Fri
Listen to each menu before making the selection.
First choose your language. Press 1 for English.
Then do NOT choose the first choice: "Refund", or it will send you to an automated phone line.
Instead, press 2 for "personal income tax".
Then press 1 for "form, tax history, or payment".