Technically, all 12 months have 28 days, with eleven of them having 28 and a few extra! The question isn’t how many months have exactly 28 days, so the correct answer is 12.
There are twelve months in a year, and traditionally, each month has either thirty or thirty-one days. However, there is one exception to this rule: February. February is the shortest month of the year, and as a result, it has only 28 days. In years divisible by four, such as 2016, February contains an additional day, known as a leap day. This helps to keep the calendar year in line with the Earth’s orbit around the sun. As a result, most people only experience 28 days in February every four years. So if you’re ever feeling short on time, just remember that February is the shortest month of the year!