The final full moon of the decade is on 12/12 at 12:12 a.m. -- kind of

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If you have a thing for moon phases or numbers then mark your calendar for this upcoming celestial event.

On Dec. 12 (12/12) at 12:12 a.m. ET the Cold Moon will become a full moon, according to the Farmers' Almanac. If you're in the central time zone, it'll be 11:12 p.m. on Dec. 11.

"The midwinter full moon has a high trajectory across the sky, causing it to sit above the horizon for a longer period of time," Farmers' Almanac explained.

The final full moon of the lunar cycle this year, and of the decade, is also known as the "Long Night's Moon" -- a fitting title as winter solstice nears which brings longer, darker nights.

And to top off the numerical calendar fun, the next day is Friday the 13th.