Honor Harrington's Universe
Date conversion
Post Diaspora / After Landing
We learn from David Weber's books that:
- March 21, 1416 PD equals
First 1, 1 AL (Manticoran style).
- March 3, 1900 PD equals
Fourth 25, 280 AL.
- The Manticoran year is 673 local days, with every third
a leap year of 674 days.
- The Manticoran year has 18 months of 37 or 38 days each.
Contents:
- Date conversions AL / PD - examples
- Date conversions AL / PD - form
- Number of days between dates - examples
- Number of days between dates - form
- Length of Manticoran year and day
- Discussion
- About the document and it's author
The conversion calculations for a date will use the number
of T-years since 01-01-01 PD and the number
of M-years since 01-01-01 AL.
Some date conversion examples:
Manticore Colony Landing:
HH birth:
HH takes command on HMS Fearless:
Manticore Colony Landing:
HH takes command on HMS Fearless:
HH takes command on HMS Nike:
Battle of Hancock:
Field Of Dishonor page 92, this can't be right
Do your own date conversion calculations:
Number of days between dates:
1898-01-01 and 1898-12-31 PD:
Do your own date difference calculations:
Length of Manticoran year and day:
Discussion:
There are problems when trying to calculate dates based on
the numbers provided by David Weber
(More Than Honor p. 335-337).
The Manticoran day will be longer than 22.45 T-hours, and
the Manticoran year will be longer than 629.83 T-days.
To get the Manticoran year to be 673.31 M-days, the leap year
rule must be modified so that 2 leap years out of every
M-century are NOT leap years.
For more discussions see my file
problem1.
Go to my
Homage to Honor Harrington page (incl. links).
Go to my
Honor Harrington Military Ranks page.
Most recent revisions:
- 14 JUL 1998 (Leap year behaviour corrected)
- 18 JUL 1998 (Error correction improved, date
calculation updated for rounding errors)
- 19 JUL 1998 (number of days between dates,
length of year and day)
- 27 NOV 2004 (changed URL to my homepage)
Go to an updated version of the
calculations based on number of days since Manticore Colony
landing.
Home page:
http://web.telia.com/~u54504162/index_e.htm