If you're planning to stop at the grocery store the day before Thanksgiving, avoid going between 5 p.m. and 6 p.m., according to a new report by Google Maps. The optimal time to go is on the Tuesday before Thanksgiving at 9 p.m.

And if you're traveling to see loved ones for Thanksgiving, 3 p.m. to 4 p.m. on the Wednesday before has the worst traffic nationally, while 6 a.m. on Thanksgiving day is the best time to head off. After the holiday, you'll want to leave early on Sunday, around 6 a.m., according to the report.