I got it from the [here](http://www.ruby-doc.org/core-2.0.0/Time.html#method-i-strftime). Unfortunately I didn't check 1.8, which didn't have the %N formatters. Gonna have to come up with something else then. Other than the microseconds, it is the same as `inspect` in 1.9 and 2.0, but 1.8.7 had a completely different format: `Sun Oct 06 11:48:46 -0400 2013`.

DateTime is a whole other issue, since it prints itself differently than Time: `"#<DateTime: 2013-10-06T12:04:39-04:00 ((2456572j,57879s,178828000n),-14400s,2299161j)>"`