[D66] Chronological Julian Day numbers

[R.O.]

https://www.hermetic.ch/cal_stud/jdn.htm


 1. *Introduction <https://www.hermetic.ch/cal_stud/jdn.htm#intro>*
 2. *The Julian Period
    <https://www.hermetic.ch/cal_stud/jdn.htm#julian_period>*
 3. *Julian Day Number
    <https://www.hermetic.ch/cal_stud/jdn.htm#julian_day_number>*

		

 4. *Astronomical Julian Day Number
    and Astronomical Julian Date
    <https://www.hermetic.ch/cal_stud/jdn.htm#astronomical>*
 5. *Chronological Julian Day Number
    and Chronological Julian Date
    <https://www.hermetic.ch/cal_stud/jdn.htm#chronological>*

		

 6. *Modified Julian Day Number
    <https://www.hermetic.ch/cal_stud/jdn.htm#mjd>*
 7. *Lilian Day Number <https://www.hermetic.ch/cal_stud/jdn.htm#ldn>*
 8. *Different Meanings of "Julian Date"
    <https://www.hermetic.ch/cal_stud/jdn.htm#different_meanings>*
 9. *Conversion Algorithms <https://www.hermetic.ch/cal_stud/jdn.htm#comp>*

Julian Day Numbers
by Peter Meyer

*The nature and origin of
the Julian Day Number system*

	
Translations of this page in
German <https://www.hermetic.ch/cal_stud/jdn_de.htm> 	Ukrainian 
<http://eustudiesweb.com/numeratsiya-dniv-za-yulianskim-kalendarem/> 
Bosnian <http://the-sciences.com/2017/04/08/julianski-dan-brojevi/>
Uzbek <http://filolife.com/julian/> 	Hungarian 
<https://tr-ex.me/social/?p=154> 	Russian 
<http://www.opensourceinitiative.net/edu/cal_stud/>
Slovak #1 <http://xovir.com/julian-day-numbers.html> 		Slovak #2 
<https://imgvehicle.com/translated/julian>

On 21-02-2021 17:14, R.O. wrote:
> https://www.lanl.gov/Caesar/node202.html
> http://www.fluks.combidom.com/javascript/calendar.htm?
> year=2021&epoch=ad
>
> Fluks: dag 1 = 1794168 en niet 1? Klopt dit?
>
> Wat is CE?
>
>
> Day #1 is
> defined March 1, AD 200 [GC and JC] - the first day both
> calendars are equal.
>
>
> *Table 11.18:* Chronological Julian Day numbers for some 
> representative dates. Date (BC/AD) 	Date (CE) 	Julian Day 	Julian Day
> 		(Julian Calendar) 	(Gregorian Calendar)
> 4714 BC/11/24 	-4713 CE/11/24 	-38 	0
> 4713 BC/01/01 	-4712 CE/01/01 	0 	38
> 753 BC/04/21 	-752 CE/04/21 	1446501 	1446509
> 2 BC/10/30 	-1 CE/10/30 	1720995 	1720997
> 1 BC/01/01 	0 CE/01/01 	1721058 	1721060
> 1 AD/01/01 	1 CE/01/01 	1721424 	1721426
> 200 AD/02/28 	200 CE/02/28 	1794166 	1794167
> 200 AD/02/29 	200 CE/02/29 	1794167 	1794168
> 200 AD/03/01 	200 CE/03/01 	1794168 	1794168
> 300 AD/02/28 	300 CE/02/28 	1830691 	1830691
> 300 AD/02/29 	300 CE/02/29 	1830692 	1830692
> 300 AD/03/01 	300 CE/03/01 	1830693 	1830692
> 1582 AD/10/04 	1582 CE/10/04 	2299160 	2299150
> 1582 AD/10/14 	1582 CE/10/14 	2299170 	2299160
> 1752 AD/09/02 	1752 CE/09/02 	2361221 	2361210
> 1752 AD/09/13 	1752 CE/09/13 	2361232 	2361221
> 1858 AD/11/16 	1858 CE/11/16 	2400012 	2400000
> 1968 AD/05/23 	1968 CE/05/23 	2440013 	2440000
> 1995 AD/10/09 	1995 CE/10/09 	2450013 	2450000
> 2000 AD/01/01 	2000 CE/01/01 	2451558 	2451545
> 2132 AD/08/31 	2132 CE/08/31 	2500014 	2500000
>
>
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