Ruby | Date amjd() function Last Updated : 01 Dec, 2022 Comments Improve Suggest changes Like Article Like Report Date#amjd() : amjd() is a Date class method which returns the astronomical modified Julian day number. Syntax: Date.amjd() Parameter: Date values Return: the astronomical modified Julian day number. Example #1 : Ruby 1=1 Output : Date a : 2019-01-01 Date b : 2001-04-04 Date c : 2019-01-12 Date a amjd form : 58484/1 Date b amjd form : 52003/1 Date c amjd form : 58495/1 Example #2 : Ruby # Ruby code for Date.amjd() method # loading date require 'date' # declaring Date a = Date.parse('2019-01-01') # declaring Date b = Date.strptime('03-12-2019', '%d-%m-%Y') # declaring Date c = Date.commercial(2019, 5, 6) # Date puts "Date a : #{a}\n\n" puts "Date b : #{b}\n\n" puts "Date c : #{c}\n\n\n\n" # amjd form puts "Date a amjd form : #{a.amjd}\n\n" puts "Date b amjd form : #{b.amjd}\n\n" puts "Date c amjd form : #{c.amjd}\n\n" Output : Date a : 2019-01-01 Date b : 2019-12-03 Date c : 2019-02-02 Date a amjd form : 58484/1 Date b amjd form : 58820/1 Date c amjd form : 58516/1 Comment More infoAdvertise with us Next Article Ruby For Beginners K Kirti_Mangal Follow Improve Article Tags : Ruby Ruby-Methods Ruby Date-class Similar Reads Ruby Programming Language Ruby is a dynamic, reflective, object-oriented, general-purpose programming language. 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