Yes, another turkey cooking time question!

clarification - dark meat can be between 170-175 degrees.

I see Monita's response went through as I sent mine. Happy Thanksgiving to both of you!

The temp of the turkey breast needs to reach 165 degrees and dark meat 175 degrees. Take temp at thickest parts of each without hitting the bone. With a stuffed turkey once meat has reached those temps take it out and take stuffing temp. If it's not 165 degrees scoop out and continue to bake separately so it's safe and turkey meat doesn't dry out.

You too!

Perfect solution. Thanks!! Enjoy your day Monita.

Check it at 4 hours. The challenge with a stuffed turkey is that the turkey may reach a cooked temp but the stuffing doesn't. If your turkey is done at 4 hours but the stuffing is undercooked you might want to consider removing the stuffing and finish cooking it in a dish so that the turkey doesn't get overcooked.

Yes, the turkey is stuffed. The recipe I'm following allows 3.5 hours for a 17 pound UNSTUFFED bird. So Maybe 4 hours isn't enough?

I think your estimate is about right, unless your turkey is stuffed, then it could take longer. I always check the internal temp 1/2 hour before the ending time because you never know how the oven is heating. A thermometer should read 165 in the thickest part of the thigh for it to be done