Roughly the 2 hour mark after a meal is generally going to be the peak of where your blood sugar hits before starting to come down again.
Sorry, this isn't true. The peak BG is generally around 45 minutes or so after eating.
The two hour point is where your BG levels should have been reduced (by your insulin response system) back to, or close to, where they were before eating, which is why you test at that point - it's a test of how efficient your system is at clearing excess glucose. The problem for T2 is that we are often not good at dealing with the excess glucose, so higher levels stay around for much longer.
Here is a link to a small bit of research demonstrating the rise and fall in BG after eating:
This study investigated continuous glucose profiles in nondiabetic subjects. Continuous interstitial glucose measurement was performed under everyday life conditions (2 days) and after ingestion of four meals with standardized carbohydrate content ...
pmc.ncbi.nlm.nih.gov