RebornicCalendar

The Rebornic Calendar is a calendar created by Dracnoian. It is named after ReborneLogik, former owner of the late Minecraft Planet Earth server, and Streamer. The calendar was first created on July 9th, 2019, and saw its first canonization on August 29th.

The calendar uses the Gregorian module for arranging time, with the only difference between the two calendars being how time is defined. The Rebornic Calendar defines a day as:

"A single day in our calendar is defined as the passage of a twenty minute day-night cycle on the MinecraftPlanetEarth server."

Fundumentally, the calendar only uses this logic on dates after January 1st, 2014 – the day which the Minecraft Planet Earth Server was founded.

The calendar was created by Dracnoian, the first iteration was made in the 6th Era of the Minecraft Planet Earth Server, on July 9th, 2019, after he noticed the F3 menu was displaying an amount of days that would be impossible given how long the server had been around. The calendar was built using screenshots and the currently existing F3 menu.

The first nation to adopt the calendar was the Res Publica Romana, though unofficial, and it was used in most of their wikipedia entries. The calendar's date, however, was altered to be 753 years ahead, to synchronize it with Ab Urbe Condita (the date at which Rome was founded). No other nation has officially adopted it or used it as much as the Romans, however.

Overview
The Rebornic Calendar can be both a simple calendar to use if you understand it, but it can be a complex looking, or hard to understand if you are just seeing it. Due to the nature of how dates have been collected, and so-called "time skips" between them, maths are often required to get specific dates.

The calendar (post-January 1st 2014) is separated into 7 distinct "eras", which mark points in time that the maths involved in calculating dates changes in accordance with a server reset, or reset of days according to screenshots.

Time Skips
At various points in every era (minus the Postrebornea), so-called "time skips" have occurred, which are events that added a random number of days, the were rare and sporadic. Most time skips only added upwards of ten or one hundred days, however, some time skips added significantly more.

The most notable of these are Magna Tempus de Maium Era (English: Great Time of May), and the Magna Tempus de Postdraconic (English: Great Time of After Dracnoian). The time skip in May added a total of 82,801 days, whilst the time skip that occurred somewhere between December 2019 and March 2020 added an astonishing 1,099,275 days.

Various explanations have been proposed for the cause of the time skips, though absolutely none can be proven. Explanations include: Administrators tampering with time, via commands such as /time set day; player-bed glitches through a plugin that moved the sun and moon in an animated manor; and glitches in the server itself that effected record keeping.

Calculations
In attempting to discover the exact date in the Rebornic Calendar that corresponds with a date in real life, and vise versa, minor amounts of maths are required. It is first required that you have a date in real life that is after January 1st, 2014 that you want a date for. Any date before 2014 does not need any modification.

When a date is selected, find the Era in which your date falls into, and find out how many days are between and including the Beginning of the Era, and your date. Multiply that number by the multiplier of the Era, and the sum will be the number of Calendar days since the beginning of the Era and your date.

When you have that number, add it to the number of all calendar days combined between January 1st, 2014, and the end of the Era before the one your date is in. Finally, add the final number to January 1st, 2014, and you will have the date you are looking for.

Eras
Eras are sections of time in the calendar where the amount of days passes by a different number per real life day. There have been seven so far, we are in the 7th. Eras are separated into two categories: "Stable" and "Unstable". Stable Eras are points in time wherein exactly 72 days pass every real life day, where as Unstable Eras have days passing at above 72 per real life days. There have been 3 Stable Eras, and 4 Unstable.