Ruby usec

Two Time objects are almost never equal:

2.2.2 :001 > t = Time.now; t2 = Time.now
 => 2015-08-11 19:22:39 -0500
2.2.2 :002 > t == t2
 => false

This is true despite the fact that they were created in the same second of time, which we can verify by casting them to integers.

2.2.2 :003 > t.to_i
 => 1439338959
2.2.2 :004 > t2.to_i
 => 1439338959

The difference between these two times is in microseconds, which aren't displayed by default. Cast them as floats to see the difference.

2.2.2 :005 > t.to_f
 => 1439338959.099774
2.2.2 :006 > t2.to_f
 => 1439338959.099776

Another path to this information is Ruby's usec method, which returns just the microseconds.

2.2.2 :007 > t.usec
 => 99774
2.2.2 :008 > t2.usec
 => 99776

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