Non-denominational-end-of-Julian-Calendar-event 

Politically Correct gone mad. Towards the end of the Julian Calendar cycle, the company you work for may invite you to an event formerly known as a Christmas Party.

Company email: You are hereby invited to the Non-denominational-end-of-Julian-Calendar-event. Please respond by Thursday if you wish to attend. There will be ham.
Employee response: No dice baby, I'm celebrating Christmas that day.

Non-denominational-end-of-Julian-Calendar-event by NaughtyJim December 7, 2010

Corona Calendar 

A calendar that feels like a 30-hour day, a 10-day week, or a 40-day month—when an awful lot of unappreciative employees who are “privileged” to work from home complain that every day is like a 19-hour workday hell.

The 2020 calendar would likely be remembered as the “corona calendar” for almost 8 billion people, who were home-jailed for weeks, when the world tried to contain the pandemic crisis.

Corona Calendar by Covido December 31, 2020

Panterran Calendar 

The calendar followed by Korrui practitioners. The Panterran Calendar is made up of 12 months (Luca, Scorin, Magiwolf, Helhog, Kinjinna, Linca, Aimo, Fauxin, Waterling, Kané, Jabber, and Leca) reflecting the 12 books of the Büq o' Ksadowce and is named for the "Panterra" that existed before all living things. The Panterran year starts on December 20th (Luca 1st) and ends on December 19th (Leca 30th.)

Korrui fallow the Panterran Calendar.

Panterran Calendar by Historics Society December 20, 2020

Facebook Calendar 

Your Facebook friend that makes daily wall posts about what day the week it is... constantly reminding you that "It's definately a Monday", or "Still-a-Monday-Tuesday", or "Hump Day Wednesday", or "Almost-There-Thursday" or "TGIF!". Often accompanied with some kind of negative tone about the work week and/or asking if the weekend is here yet.

dude 1: Damn, I've been raging so hard - I dunno even know what day it is!

dude 2: Me neither, lemme consult my Facebook Calendar - oh there it is, I see we are "halfway through the work week, Happy Hump Day!"

Facebook Calendar by ellare April 7, 2010

penis calendar

A humourously annoying person, sometimes affectionately refered to as a jew or an asshat.

Daniel, quit being a penis calendar, you silly man!

penis calendar by Ian and Dan August 30, 2008

day-by-day calendar 

MOORPARK RESIDENTS ENJOY A COMMUNAL DUMP
actual newspaper headline

eat. spit. be happy.

day-by-day calendar by discolemonade July 12, 2004

Millenial Calendar 

A modern calendar setting year zero as the year the internet was launched 1982 while rataining standard calendar months and days, with all years after 1982 referenced as "the year __ A.I." or "after the internet" and all years before 1982 referenced as 'the year __ B.I." or "before the internet."

Using the Millenial Calendar a person born in 2004 would be said to have been born in the year 21 A.I. , and a person born in 1966 would be said to have been born in the year 21 B.I.

Millenial Calendar by respectistheanswer May 19, 2018