The Shattered Lands
The first known dating system originated with the Kingdom of Hadean (noted as HR or the Hadean Reckoning). The Hadean were also responsible, thanks to their study of the movements of the heavenly bodies, for the first recognized calendar, which is still used to this day. A second dating system originated in Ranke, commemorating the start of a new era with the Rankan victory over the ancient Hadean. The Rankan system (noted as RE or Rankan Era) replaced the Hadean system throughout the empire, except in the farthest reaches of their conquered territory. Even though the Rankan Empire has imposed this system for a little over a century, it is still the preferred method record-keeping in most places, including Sanctuary.
The Hadean calendar is based on the seasons. A year is broken into four Arcs, one per season. Each Arc is broken into three parts, called the Cycles; Inito, Media, and Fina. Each Cycle begins with the new moon and lasts usually 30 days. Sometimes the moon starts new after 29 days, these months are considered unlucky in many cultures. A year begins with the start of spring, in the Arc of Vernus. The year continues through the seasons with summer – Aestas, fall – Autus, and winter – Hiber. The month is broken every 7 days for a day of rest, with the last 2 or 3 days used to celebrate and rest. A month of 30 days brings 3 days at the end of the month for rest and merriment, making it very popular with most folk.
The Rankan calendar is more regimented. Based on the lunar cycle, but ignoring inconsistencies, the Rankans declare there to be 360 days in a year, 12 months, 3 weeks each of ten days. The calendar is heavily influenced by their religious views, with the months being named for major gods. The long weeks are broken by a half day free of work on the fifth day and a whole day on the tenth to be given to worship and community.