The guideline that I was taught was 2 hours after the you sat down to eat the meal. Maybe it might be a good idea to set the kitchen timer when you say grace... If your timer doesn't go up to 2 hours just set it for an hour and then reset. Also, if your 2hour PP (postprandial) numbers are running ok (110 would be great!) then start testing every other day or so. If they are running high (over 150) you need to rework your meal plan, up the veggies and lower the starches. If you do that and don't see a definite improvement it's time to talk to the doctor about a med change or dosage switch.
Something else that can affect your numbers is exercise. Sometimes the results of exercise doesn't show up on your meter until several hours after you have finished. Remember to take this into account if your numbers are kattywampus. Taking a walk after a meal is one way to divert the available carbs away from fat storage and into muscle use so they get used up. This will also lower numbers. I have found this helps my overnight spikes sometimes. Hope this helps.
~ Jeannie, Forum Moderator/Diabetes & Fibromyalgia
I know God will not give me anything I can't handle. I just wish that He didn't trust me so much. ~Mother Teresa
"People are like stained glass windows: They sparkle and shine when the sun's out, but when the darkness sets in, their true beauty is revealed only if there is light within."- Elizabeth Kubler-Ross