how to get the value in julian date and time
조회 수: 9 (최근 30일)
이전 댓글 표시
suppose we have 2014-04-29 4:35:22 date and time then how to convert the date and time together in julian, keeping 2000 as a starting reference.
댓글 수: 2
Michael Soskind
2020년 5월 7일
Is there a reason that the function juliandate does not work for you? Are you using Matlab 2014b or newer?
채택된 답변
Kelly Kearney
2020년 5월 7일
Can you explain what you're defining as "Julian date"? While the 4714 BCE reference date is the proper one for a real Julian date, I know the term is often used in my field to mean either day-of-year or days-since-reference-date. My guess is you want the last option, in which case
tstr = '2014-04-29 4:35:22';
jd = days(datetime(tstr) - datetime(2000,1,1))
추가 답변 (1개)
Michael Soskind
2020년 5월 7일
Hi Monica,
The following code should work for your example:
% Julian Date Example
% modified from https://www.mathworks.com/help/matlab/ref/datetime.juliandate.html
t1 = datetime('2014-04-29 4:35:22'); % Time input in traditional datetime format
t1.TimeZone = 'America/New_York' % Setting the timezone
% Printing the Julian date as the number of days and fractional days since
% noon on November 24, 4714 BCE
format longG % Defining the format to print Julian Date
jd1 = juliandate(t1)
Hope that helps,
Michael
댓글 수: 2
Michael Soskind
2020년 5월 7일
Sorry I misinterpretted the question; Kelly just answered that for you, below.
참고 항목
카테고리
Help Center 및 File Exchange에서 Dates and Time에 대해 자세히 알아보기
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!