datetime objects returned from the
dateutil parser are naïve, meaning they don't have an explicit
tzinfo, which specifies the timezone and UTC offset. In the previous recipe, only one of the examples had a
tzinfo, and that's because it's in the standard ISO format for UTC
datetime strings. UTC is the coordinated universal time, and is basically the same as GMT. ISO is the
International Standards Organization, which among other things, specifies standard datetime formatting.
datetime objects can either be naïve or aware. If a
datetime object has a
tzinfo, then it is aware. Otherwise, the
datetime is naïve. To make a naïve
datetime object timezone aware, you must give it an explicit
tzinfo. However, the ...