View Full Version : 10000 day calender

10-15-2005, 04:38 PM
in regards to a date code. chrysler refers to a 10000 day calender what is that?
thanks freddy

10-15-2005, 04:48 PM
A really big calendar, duh.

Last Old Dog
10-15-2005, 05:37 PM
This smacks of a Julian/Gregorian date algorithmic scheme to extend the legit dates that can be managed in 2 bytes. . . . Last Old Dog

10-15-2005, 08:58 PM
That's only 27 years. My Land Rover is 47. I guess it says something about how long they expect their product to last. Or maybe how long they expect to stay in business?

Flatline's Up!
10-15-2005, 11:13 PM
It must be moot since the calendar we currently go by only lasts 13 years (IIRC) before it repeats itself.

10-16-2005, 12:36 PM
thanks anyway

Last Old Dog
10-16-2005, 06:57 PM
There is more to it. For years (yea, a bunch) we have been assigning a sequential number to each day. So as time goes on, this number (we called it the Julian Number) would increment by one each day, year after year.

This number was then used to calculate days between dates as used for aging in accounting, banking, and many other fields. Simply subtract one from the other. In all the computer software we wrote, the actual Gregorian date (the calanddr on the wall) was converted into this sequential number and stored in that very compact space saving way. When a date was requested from a file, the computer employing a quick algorithm would convert it to MMDDYY, DDMMYY, MMDDYYYY, or what ever format you wanted. And it made adjustments for leap year too. Invaluable for calculating days between dates.

“Mr(s) Deadbeat, your account is 180 days old. . . . blah blah blah”

“Mr(s) Responsible Saver, your CD with daily compounding has increased by this much over the last 5 years.

“Mr(s) Water User, your avg daily usage since the meter installation March 19, 1952 to present is . . . “

Can you imaging trying to calculate with any accuracy the number of days by hand? There are not exactly 4 weeks in a month nor 52 weeks in a year. . . . .Last Old Dog

10-17-2005, 01:59 AM
Yep! That's yer Stardate, Captin Kirk!

Starts Jan. 1, 1900, doesn't it?

[This message has been edited by uute (edited 10-17-2005).]