julian-date Questions
11
Solved
I have a string "2012.11.07" in python. I need to convert it to date object and then get an integer value of day of year and also Julian day. Is it possible?
Nonlinearity asked 18/12, 2012 at 23:12
4
Julian Day Numbers are a means of representing timestamps as a continuous count of days (and fractional days) since noon UTC, January 1, 4713 B.C. The Java 7 SE API does not contain support for thi...
Pythagoras asked 20/2, 2013 at 19:37
10
Solved
I have seen the "solution" at http://www.rgagnon.com/javadetails/java-0506.html, but it doesn't work correctly. E.g. yesterday (June 8) should have been 159, but it said it was 245.
So, does someo...
Cateyed asked 9/6, 2010 at 12:3
12
Solved
I need to convert from a standard Gregorian date to a Julian day number.
I've seen nothing documented in C# to do this directly, but I have found many posts (while Googling) suggesting the use of...
Susette asked 9/3, 2011 at 16:27
4
Solved
How do I convert day-of-year to date? For example, what's the date for 104th day of 2004?
This is the opposite of How do you convert POSIX date to day of year in R?
Inelegancy asked 13/6, 2014 at 7:35
3
Solved
I need Objective C method for converting Gregorian date to Julian days same as this PHP method (GregorianToJD).
Cabbageworm asked 3/4, 2014 at 6:36
4
Solved
How can I convert from a unix timestamp (say 1232559922) to a fractional julian date (2454853.03150).
I found a website ( http://aa.usno.navy.mil/data/docs/JulianDate.php ) that performs a similar...
Corrianne asked 21/1, 2009 at 17:52
3
Solved
I'm trying to convert an xarray data array to a pandas dataframe for a machine learning project, but the time data appears to be in a cftime.DatetimeJulian format, which is not convertible using th...
Burkitt asked 21/4, 2019 at 21:38
2
Solved
What is the best/easiest way to deal with Julian days in C++? I want to be able to convert between Julian days and Gregorian dates. I have C++11 and C++14. Can the <chrono> library help with ...
Campanulate asked 27/11, 2015 at 20:31
9
Solved
I have searched far and wide, but I can't seem find a way to convert julian to yyyy-mm-dd.
Here is the format of my julian:
The Julian format consists of the year, the first two digits, and the ...
Vallation asked 5/11, 2015 at 16:48
9
I am writing code to convert from a Gregorian date to a JDE (J.D.Edwards) Julian date.
Note: a JDE Julian date is different from the normal usage of the term Julian date.
As far as I can work out...
Hautevienne asked 23/7, 2009 at 11:42
6
Solved
I have a year value and a day of year and would like to convert to a date (day/month/year).
Compelling asked 11/3, 2010 at 18:21
7
Solved
I am trying to convert a Julian integer back to a date.
Example:
integer 2456931 = 2014/09/30 // format YYYY/MM/DD
Please Help - Thanks in Advance,
Cape asked 14/10, 2014 at 21:30
6
Solved
I'm trying to create a julian date in python and having major struggles. Is there nothing out there as simple as:
jul = juliandate(year,month,day,hour,minute,second)
where jul would be something...
Padang asked 30/6, 2015 at 15:15
4
Solved
how can I select Julian day of year in Oracle database?
I tried:
select to_char(sysdate, 'J') from dual;
Which gives me the number of days since January 1, 4712 BC. But I would need the number of...
Raffaello asked 16/7, 2014 at 8:3
3
Solved
'scuse the upper case, they are constants.
I am having fun learning ruby's Date helpers.
1.9.3p125 :057 > Date::ABBR_MONTHNAMES
=> [nil, "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "A...
Adore asked 6/8, 2012 at 20:10
5
Solved
I have a column of dates in the format:
16Jun10
and I would like to extract the Julian day.
I have various years.
I have tried the functions julian and mdy.date and it doesn't seem to work.
Cleaver asked 28/1, 2014 at 19:22
4
Solved
I'm running into a situation where I would like to convert from a Julian date to an java.time.Instant (if that makes sense), or some Java time that can be more easily understood. My understanding o...
Zsa asked 14/8, 2015 at 18:16
3
Solved
I am trying to get day ,month and year from a Julian date.
String date = "13136";//Julian date
Date convertedDate = new SimpleDateFormat("yyDDD").parse(date);
System.out.println(convertedDate);...
Balloon asked 16/5, 2013 at 11:58
1
Solved
The JulianDate object in Skyfield is a handy way to quickly produce and hold a set of time values in Julian Days, and pass them to Skyfield's at() method to calculate astronomical positions in vari...
Sharecropper asked 12/2, 2016 at 14:0
5
How do I convert a 7-digit julian date into a format like MM/dd/yyy?
Niobium asked 10/6, 2010 at 19:54
3
Solved
I have seen numerous examples on the web and a few here on SO. However, none seem to work for my data. Here are a few julian dates with their known converted values.
JUL | DateTime
2454522 | 2008-...
Uniocular asked 29/4, 2013 at 13:8
2
I need to write a function that converts a Julian dates (Year, Day of Year, Hour of Day and Minutes) into a standard form (Year, Month, Day of Month, Hour of Day and Minutes) and express it as a st...
Wold asked 14/4, 2010 at 14:58
1
Solved
My post was apparently unclear, so I'm trying to fix it, don't hesitate to tell me if I'm still unclear!
I got a dataframe of physical variables, with a data every minute. I'd like to convert the 4...
Diocesan asked 30/7, 2013 at 13:10
1
Solved
I'm writing an application in Lua that calculates the sunset/sunrise, and to do this I had to convert the Gregorian date in to Julian days initially and do all the complex maths and such from there...
Girlie asked 22/7, 2013 at 14:44
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