TurboTax does not receive updates from the IRS once they have accepted your return. The date given in TurboTax is an estimate of when you may receive your return. The IRS gives the actual deposit date and issues most refunds in about 21 days, although some returns take more time to review.
You will find the most current information on the IRS website.
https://www.irs.gov/refunds
See this information if your refund is taking longer to process:
https://ttlc.intuit.com/community/refunds/help/why-do-some-refunds-take-longer-than-others/00/26163