Creates a glib.date_time.DateTime corresponding to the given Unix time t in UTC.
Unix time is the number of microseconds that have elapsed since 1970-01-01 00:00:00 UTC.
This call can fail (returning NULL) if t represents a time outside of the supported range of #GDateTime.
You should release the return value by calling glib.date_time.DateTime.unref when you are done with it.
the Unix time in microseconds
a new glib.date_time.DateTime, or NULL
Creates a glib.date_time.DateTime corresponding to the given Unix time t in UTC.
Unix time is the number of microseconds that have elapsed since 1970-01-01 00:00:00 UTC.
This call can fail (returning NULL) if t represents a time outside of the supported range of #GDateTime.
You should release the return value by calling glib.date_time.DateTime.unref when you are done with it.