Double Leap Calendar
  • Home
  • 0001-2000
  • Adjustments
  • Implementation
    • 2001-2800 (Plan A)
    • 2001-2800 (Plan B)
  • 2801-5600
  • 1582-Oct
  • Other
    • Statutory
    • 46 BC
    • 13-month
  • References
  • Contact

2001-2800 AD and if implementation occurs on Sun, Jan 1, 2012

Leap yearsYears elapsedDays lost/yearCumulative days lostDays to addOver/Under-rounding
Year 2000 was known as the 'Big Leap' (Leap day occurs every 4 years)
200440.24250.971+0.03
200840.24250.971+0.03
200910.2425-0.2425
201010.2425-0.2425
201110.2425-0.2425
Implementation date: Sunday, January 1, 2012
201211.2425-1.2425
201311.2425-1.2425
201411.2425-1.2425
201511.2425-1.2425
Leap Week occurs every 7 years and Double Leap Week occurs every 28 years
Year 2016-2044 accounts for an over-rounding of (0.25-0.2425)/year * 28 years = +0.21 days
202371.258.757
203071.258.757
203771.258.757
204471.258.7514
28 yrs--35 days35 days+0.21
Year 2045-2072 accounts for an over-rounding of (0.25-0.2425)/year * 28 years = +0.21 days
205171.258.757
205871.258.757
206571.258.757
207271.258.7514
28 yrs--35 days35 days+0.21
Year 2073-2100 accounts for an over-rounding of (0.25-0.2425)/year * 28 years = +0.21 days
207971.258.757
208671.258.757
209371.258.757
210071.258.7514
28 yrs--35 days35 days+0.21
Year 2101-2800 accounts for an over-rounding of (0.25-0.2425)/year * 700 years = +5.25 days
...............
277971.258.757
278671.258.757
279371.258.757
280071.258.7514
28 yrs--35 days35 days
+5.25
Net = +0.2425
See Adjustments for further explanations regarding Over/Under-rounding.

© 2009-2013 Marcus W.

Powered by Create your own unique website with customizable templates.