Is there a standard for how a date/time should be formatted? I have seen the following variations and I'm never sure which one is "more standard" than the others, and they seem to pop up in about equal frequency:
2014-01-01T00:00:00 UTC2014-01-01 00:00:00 UTC2014-01-01 00:00:00Z2014-01-01T00:00:00Z2014-01-01 00:00:00+00:002014-01-01T00:00:00+00:00