Ruby: How do I define a datetime field in YAML?

I'm creating test data for a Rails app. How do I defin开发者_StackOverflow中文版e the value for a datetime field in YAML?

when rails generates fixture files it uses the following format in the yaml files

one:
 something_at: 2010-02-11 11:02:57
 something_on: 2010-02-11

Found the answer here:

model:
   datetime_field: 2010-04-16 16:32:03 -5

When I yaml DateTime, I generally pack it as a string:

foo = DateTime.now
foo_yaml = YAML.dump(foo.to_s)
foo = DateTime.parse(YAML.load(foo_yaml))
puts foo

I'd be interested to know if there's a better way.

For me works it wrapped in " "

created_at: "2010-02-11 11:02:57"

With Time zone: created_at: 2013-09-25 16:00:00 +0800