@Nongnuch *******
Neither are marriage extension, but they are known as such in the popular jargon, that's my point. Because to get the 60 days extension, you need to be married or have a child, which is the same for the 12 months. You can't get the 60 days extension without a marriage certificate or proof that you are the dad. So both are basically marriage extension because without being married you won't qualified for the 60 days extension. You are right in terminology, ofc.