6,000-Year Sabbath/Jubilee Slide Rule Calculator v1.2

This tool models 6,000 years as 120 Jubilee cycles. Calendar Mode can render either a straight 364-day schematic year of 52 complete weeks or a 365.2422-day tropical-year timeline anchored to the same final counted day.

The 364-day mode preserves the complete-week Sabbath and moedim structure. Tropical mode independently recalculates the 6,000-year position using the average tropical year; because its boundaries are fractional, displayed tropical years contain 365 or 366 whole civil dates and do not preserve a fixed 52-week festival pattern. Version 1.2 also shows the next modeled Jubilee year and its Gregorian overlay dates.

Model Controls

Calendar Mode

Model year to render

Gregorian overlay end date, AD/CE

End date meaning

Moedim overlay reference

Target Date Locator

Locate an AD/CE or BC/BCE Gregorian date inside the selected 6,000-year model. BC/BCE years use astronomical conversion: 1 BC = year 0, 2 BC = year -1, and so on. The JDN and civil date remain fixed while the assigned model year changes with Calendar Mode.

Target month

Target day

Target year

Era

Target date results will appear here.

Absolute Day	Julian Day Number	Julian Overlay Date	Gregorian Overlay Date	Model Year	Day of Year	Week of Year	Day of Week	Sabbath?	Jubilee Cycle	Jubilee Year?	Moedim / Pattern Notes