This date is an estimate. For direct deposit, check with your bank to see if you have a deposit pending and check to make sure that you entered the correct information. this can be found on the filing instruction page and page 2 of the form 1040.
Refunds take about 21 days once the IRS has accepted your return.
You can follow this link to learn how to track your refund.
https://turbotax.intuit.com/tax-tools/wheres-my-refund/
Refunds take about 21 days once the IRS has accepted your return. Some tax returns take longer to process than others for many reasons, including when a return:
Also, the IRS cannot issue EITC and ACTC refunds before mid-February. The IRS expects the earliest EITC/ACTC related refunds to be available in taxpayer bank accounts or debit cards starting Feb. 27, 2018, if these taxpayers chose direct deposit and there are no other issues with their tax return.https://www.irs.gov/refunds/tax-season-refund-frequently-asked-questions
You can follow this link to learn how to track your refund.