Some confusion apparent here -
The word Julian appears in two instances that I know of when referring to
dates. There is the Julian calendar and Julian dates.
The Julian calendar refers to the original calendar invented by Julius
Ceasar where a year was 365 1/4 days long. In 1582, Pope Gregory estimated
that the Julian calendar had thrown the calendar off by 10 days and thus
eliminated the dates Oct 5-14, 1852 to correct it. The new calendar is
known as the Gregorian calendar. The headaches that we had by the fact that
2000 was not a leap year is part of the same system. Incidently, the
Gregorian calendar isn't perfect either; A Gregorian year is approximately
12 seconds longer than an astronomical year (the time it takes for the earth
to move around the sun). However, since it will take another 2000-3000
years before we're even 12 hours off, I don't think anyone is that worried.
Julian dates refer to a data format where months are not counted, only the
day of the year. Today for example is April 13th 2001, which is the
31+28+31+13=103rd day of the year. The Julian date then is 2001103. The
only place that I've ever encountered that uses Julian dates is the military
supply system, I think because they're concerned with how quickly something
can be fufilled and not having to fuss as much over leap years. However,
given that military supply is a multi billion dollar industry, that probably
big enough to justify knowing about it.
Brian
-----Original Message-----
From: DeVoil, Nick [mailto:[EMAIL PROTECTED]]
Sent: Thursday, April 12, 2001 8:54 AM
To: CF-Talk
Subject: RE: How to get Julian Date
Julian dates are normally based on something in the distant past,
so if you want it to work with existing data you need to make sure
the base date is the same. I think that the base date can be
configured within Informix.
Nick
-----Original Message-----
From: Paul Sizemore [mailto:[EMAIL PROTECTED]]
Sent: Thursday, April 12, 2001 1:31 PM
To: CF-Talk
Subject: RE: How to get Julian Date
Thanks for the help. I'm rewriting some Informix 4gl's in CF.
-----Original Message-----
From: Adrian Cesana [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, April 11, 2001 4:43 PM
To: CF-Talk
Subject: RE: How to get Julian Date
<cfset JulianDate = "#numberformat(dayofyear(Now()), 000)#">
This should do it,
Adrian
-----Original Message-----
From: Paul Sizemore [mailto:[EMAIL PROTECTED]]
How would I get the julian date for today, besides using the CF_Julian tag?
Paul
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