How can I find out the exact date I filed my 2019 tax return? The date isn't listed anywhere in the forms?

[DoninGA]

Assuming you e-filed the 2019 federal tax return, look at the Electronic Postmark Report in the 2019 PDF download.  It will have the date/time the 2019 tax return was e-filed and the date it was accepted by the IRS, if accepted.

To access your prior year online tax returns sign onto the TurboTax website with the User ID you used to create the account - https://myturbotax.intuit.com/

Scroll down to the section Your tax returns & documents.  Click on the Year and Click on Download/print return (PDF)

If you used the desktop CD/Download editions installed on your computer, the only copy of your tax data file and any PDF's will be on the computer where the return was created.  TurboTax does not store online any returns completed using the desktop editions.

[fanfare]

you should write these things down, perhaps on the paper copy that you keep for your own records.