Old Earth Calendar

The Old Earth Calendar is quite simply the calendar that was utilized on Earth increasingly throughout Ancient History, before becoming the official Civil Calendar with the Establishment of the United Nations Emergency Mandate. The Calendar lasts three hundred sixty five days with leap years almost every four years, with a couple of exceptions on a one hundred year basis. It assumes a day is twenty four hours long, more or less, in agreement with the rotation of the Earth around Sol. In essense every unit of time larger than an hour is tied to the conditions of Earth, and which is how it earns the name 'Old Earth Calendar'.
The Old Earth calendar was used, for the sake of maintaining a galactic standard for tracking the passage of time, throughout the Age of Unity, and is still generally used by most galactic polities for the same purposes. However, this has been meet with some controversy as ever since the Jred Scourge, and and the scourging of Earth, the planet has been almost entirely uninhabited as one of the most poisonous Jred worlds in the galaxy, and therefore cannot be seen, in any sense of the word, as the center of human civilization anymore. Indeed many have elected to start to abandon the Earth calendar in the name of using more much better adapated to the conditions of their own worlds. Though this movement has not gained much official support, at least not in Civilized Space, it has become an increasingly common practice among average peoople to start maintaining their own calendars. In Frontier Space, which is generally less connected to the galactic economy, this practice has started to gain institutional traction, and many of the larger worlds in the frontier have begun to adopt local calendars that are much better suited to their own world's conditions as a means of timekeeping.