Ruby Time Class
The Time class in Ruby has a powerful formatting function which can help you represent the time in a variety of ways. The Time class contains Ruby's interface to the set of time libraries written in C. Time zero for Ruby is the first second GMT of January 1, 1970. Ruby's DateTime class is superior to Time for astronomical and historical applications, but you can use Time for most everyday programs.
The strftime function is modelled after C's printf. The p042time.rb program shows some of these functions.
t = Time.now
# to get day, month and year with century
# also hour, minute and second
puts t.strftime("%d/%m/%Y %H:%M:%S")
# You can use the upper case A and B to get the full
# name of the weekday and month, respectively
puts t.strftime("%A")
puts t.strftime("%B")
# You can use the lower case a and b to get the abbreviated
# name of the weekday and month, respectively
puts t.strftime("%a")
puts t.strftime("%b")
# 24 hour clock and Time zone name
puts t.strftime("at %H:%M %Z")The output is:
>ruby p042time.rb
10/09/2006 10:06:31
Sunday
September
Sun
Sep
at 10:06 India Standard Time
>Exit code: 0Summary
I have listed down all the important points you need to remember after you have completed the following topics: Access Control, Exceptions, Logging, Ruby Time class.
Note: The Ruby Logo is Copyright (c) 2006, Yukihiro Matsumoto. I have made extensive references to information, related to Ruby, available in the public domain (wikis and the blogs, articles of various Ruby Gurus), my acknowledgment and thanks to all of them. Much of the material on rubylearning.github.io and in the course at rubylearning.org is drawn primarily from the Programming Ruby book, available from The Pragmatic Bookshelf.