Converting UTC timestamp to ISO 8601 in Ruby

Question

I have a timestamp that is in UTC

\"2010-10-25 23:48:46 UTC\"

I need to convert it into ISO 8601

\"2010-10-29 06:09Z\"

The documentation is

Answer 1

Adding an answer to this super old question because if you're using Rails, there is no need to convert/parse it in the way the other answers here are telling you to do:

• If it's already a timestamp (e.g., a created_at or updated_at attribute), you can directly call the iso8601 method on that timestamp (e.g., object.created_at.iso8601).
• The iso8601 method also accepts a numeric argument to display fractional digits; you would use this if you want 2020-04-06T19:16:55.604Z instead of 2020-04-06T19:16:55Z.

https://api.rubyonrails.org/v5.2.4/classes/ActiveSupport/TimeWithZone.html#method-i-iso8601