TIME Ordinary year is 365 days long, and leap year is 366 days long. Eight leap years in every millenium (all 00 years but 500. and 1000.) have a day removed from them, making them 365 days long. Year is divided into twelve months, grouped in 6 pairs. First month of a pair is 29 days long and second is 30 days long. Remaining 11 days are placed between the months. These are called intercalarii (intercalary days), and are considered holidays. Months are counted numerically: Unimber, Binimber, Trinimber, Quadrimber, Quinimber, Senimber, September, October, November, December, Undecember, Duodecember. Week has seven days. Each month has four weeks, but one or two days per month are left outside the week, and are also holidays. Days within the week are marked with letters: A, B, C, D, E, F, G, or simply called feria prima, feria secunda, feria tertia, feria quarta, feria quinta, feria sexta, feria septima. Extra day is called dies Solis, with dies Lunae also appearing in 30-day months. These used to be at the end of a month, but were shifted to middle of the month on 615 AUC. Thus middle day or middle two days of a month are holidays. Intercalary days outside the months are termed intercalarius primus, intercalarius secundus etc., and are placed in between the months. Day is divided into twelve horae (hours), beginning at sunrise and ending at sunset. Night is divided into four vigilae (watches). This division is mostly used only in the military. Astrological day is divided into 24 equal hours, beginning at midnight, and this is usually used for civilian purposes (time is kept by spring-driven clocks). Seasons may also be noted – spring, summer, autumn and winter. These correspond to phases, with elemental names – earth for spring, fire for summer, air for autumn and water for winter. Years are numbered either AUC (Ab Urbe Condita – since founding of the city) or else AOM (Annus Origine Mundi). Currently, year is 2215 AUC or 7724 AOM. Years earlier than founding are listed as PUC (Prior in Urbe Condita). Other than that, there are several other time-keeping systems. Years are also counted by the ruler who was crowned in that year. Particular year may be the fifth year of the reign of Emperor [Insert Name]. Fourth calendar is indictionary. This system utilizes the fiscal adjustment year of the baseline. Tax assessment is carried out every 15 years. Year 2215 AUC is also the 10th year of 148th indiction cycle. NOTE: starting year for the story is equivalent to 1461. in history. Rome was founded 753 BC 1461 - Wikipedia NOTE2: YEAR CALCULATION Astronomical year is 365 days, 5 hours, 48 minutes, 45 seconds long. Calendar year is 365 days long. This makes astronomical year 31 556 925 seconds long, and calendar year 31 536 000 seconds long. Every 4 years, a day is added (24 hours, 86 400 seconds). As a result, four astronomical years have 126 227 700 seconds, and four calendar years 126 230 400 seconds. Astronomical century has 3 155 692 500 seconds, while 25 calendar quartets would have 3 155 760 000 seconds. Astronomical millenium has 31 556 925 000 seconds, while calendar millenium would have 31 557 600 000 seconds. Thus one day is removed from a year every 125 years (eight years per millenium), leaving calendar millenium at 31 556 908 800 seconds, 16 200 seconds shorter than astronomical millenium. This requires an additional day every 5 millenia, meaning that 5-millenia period is 157 784 625 000 seconds in nature and 157 784 630 400 seconds in calendar, or 5 400 seconds more. Not counting an additional day every 5 millenia, which is too long of a period to be accounted for, Vetronian calendar millenium would be 16 200 seconds or 0,0000513359% shorter than astronomical millenium. A year would thus be 16,2 seconds shorter than astronomical year on average, for 16 200 seconds or 0,1875 days every 1 000 years. This lack of 4 hours, 30 minutes and 0 seconds makes it more accurate than Numenorean calendar (4 hours, 46 minutes, 40 seconds every 1 000 years). skip.knox Above looks good? EDIT: Just a note, but in Croatian Dalmatian dialect, "ferija" means "holiday". So all Roman days would be holidays.