I´ve already e-filed my Federal and Utah refund. It says both have been accepted. However, It does not say anything about estimated date of UT TAX RETURN. What´s wrong?

According to the Utah State Tax Commission website below, they are not issuing refunds until 120 days from the date you filed your return. 

You can check the status of your Utah Tax Return directly via their website at the link below:

You can check your refund at the Utah State Tax Commission's Taxpayer Access Point.

For refund-related questions, contact the Utah State Tax Commission.

Statement from Utah State Tax Commission: The Tax Commission cannot issue refunds before March 1st if it cannot verify your W-2s with your employers. Due to our efforts to protect your identity, please allow 120 days from the date you filed your return or March 1, whichever is later, to process your return and refund request. Use the “Where’s My Refund?“ tool to track the status of your refund