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Re: convert from Julian date to calendar date and vice verse [message #80721 is a reply to message #80718]

Tue, 03 July 2012 16:15

wlandsman
Messages: 743
Registered: June 2000

Senior Member

My posts from a few hours ago don't seem to have shown up -- sorry if they appear twice

daycnv.pro does not have the wrong zero point. It converts to Gregorian (not Julian) calendar day, and JD 0.0 corresponds to November 24 4713 BC in the Gregorian calendar.

( e.g. http://www.hermetic.ch/cal_stud/jdn.htm#comp ). Cheers, --Wayne

On Tuesday, July 3, 2012 6:32:23 AM UTC-4, Stefan wrote:

> you could use this:
>
> http://idlastro.gsfc.nasa.gov/ftp/pro/astro/daycnv.pro
>
> but be aware that your dates are not Julian dates since the zero-point is wrong. The ZP for the JD is
>
> 12:00 January 1, 4713 BC, Monday
>
> and you will have to convert to this before you perform the conversion.

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[Message index]

		Re: convert from Julian date to calendar date and vice verse By: wlandsman on Wed, 04 July 2012 08:19
		Re: convert from Julian date to calendar date and vice verse By: wlandsman on Tue, 03 July 2012 16:15
		Re: convert from Julian date to calendar date and vice verse By: stefan.meingast on Tue, 03 July 2012 03:32
		Re: convert from Julian date to calendar date and vice verse By: Andy Sayer on Mon, 02 July 2012 11:04

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