format a date in to the format 'yyyy-mm-dd hh:mm:ss.fff zzz' in ruby

To format a date in the format "yyyy-mm-dd hh:mm:ss.fff zzz" in Ruby, you can use the strftime method on a DateTime object. Here's an example code snippet:

main.rb
require 'date'

datetime = DateTime.now

formatted_datetime = datetime.strftime('%Y-%m-%d %H:%M:%S.%L %Z')

puts formatted_datetime
132 chars
8 lines

In this example, we first require the date library in order to use the DateTime class. We then create a DateTime object for the current date and time using DateTime.now.

Finally, we use the strftime method with a format string argument to format the date and time as desired. The format string uses various format directives to represent different components of the date and time. In this case, we use %Y for the year (four digits), %m for the month (two digits), %d for the day of the month (two digits), %H for the hour (24-hour clock, two digits), %M for the minute (two digits), %S for the second (two digits), %L for the millisecond (three digits), %Z for the timezone abbreviation (e.g. "PST" or "UTC").

The resulting string will be in the format "yyyy-mm-dd hh:mm:ss.fff zzz", where "zzz" represents the abbreviated timezone.