Board Thread:News and Announcements/@comment-1674355-20140207052707/@comment-1674355-20140216131854

Right on, DipperPines12. The date layout is correct for 2012, not 2013. (But it needs to be a Sunday-Saturday calendar, not a Monday-Sunday).

We also have Mabel's comment in "The Inconveniencing" that suggests she associates their birthday with leap-year (2000, not 2001). And there's the "Pirates of Penzance" connection with the names Mabel and Stanley.

On the other side, we have a story narrated by Mabel, describing a scene where she wasn't present. She's also an unreliable narrator, both silly and known to tell quite a lot of lies herself. So the tax form date is not reliable evidence.

We also have a catch phrase by Sev'ral Timez that they seem to say when things are going well. It could mean "Things are going so well it feels like we are a year in the future." Or it could mean nothing. The clones are very uneducated.