I made a mistake on Form 1116, Par II foreign tax paid date, found during my final review but not submitted - how can I correct this?

doesn't really matter as long as the correct year. 

Follow the steps below to go back to that section:

1. Open (continue) your return in TurboTax
2. Select Search and search for foreign tax credit. Select the Jump to link in the search results
3. Continue until you get to the screen Do you want  the Deduction or the Credit? select Take Credit and continue.
4. If you land on the screen Elect the Simplified Method, Select Other Calculation.
5. Continue until you get to the Country Summary. Click Edit next to the country.
6. Continue until you get to the screen Foreign Taxes Paid- country's name. At the bottom you can adjust the date