Generate an RFC 3339 timestamp similar to Google Tasks API?

Question

I am in the process of building an app that syncs with Google Tasks. As part part of the syncing, I want to compare the local task and the API task, and see which one has be

Answer 1

The Z behind the first date indicates it's UTC (Zulu) time, without the Z it will use the local (computer) time, which could be several time zones off.

See: http://en.wikipedia.org/wiki/UTC