In most contexts, a month is understood to be a longer period than four weeks. The average month in the Gregorian calendar, which is widely used, has approximately 30.44 days. When calculating 12 weeks, it is found that this period consists of 84 days (since 12 weeks x 7 days per week equals 84 days).

Answer: No, 12 weeks and 3 months are not exactly the same.

It is commonly assumed that a month equals four weeks, but this is an oversimplification.

In contrast, 3 months, on average, amount to about 91.3 days (30.44 days per month x 3 months). This calculation reveals a difference of approximately 7.3 days, showing that 12 weeks is shorter than 3 months. Therefore, while 12 weeks and 3 months might seem similar in length, they are not precisely equivalent in terms of days.