Can Ramadan be 28 days?

Ramadan, like other lunar months, is never less than twenty-nine days and never more than thirty days. This is based on the Prophet, peace and blessings be upon him, who said: "The month is like this, and this, and this," then he clasped his thumb in the third instance (meaning twenty-nine), "so fast upon seeing it and break your fast upon seeing it. If it is obscured from you, then complete thirty days for it." This means it is sometimes twenty-nine days and sometimes thirty.