Returns the ISO 8601 week-numbering year in which the week containing
datetime falls.
This function, taken together with g_date_time_get_week_of_year() and
g_date_time_get_day_of_week() can be used to determine the full ISO
week date on which datetime falls.
This is usually equal to the normal Gregorian year (as returned by
Since 2.26
Returns the ISO 8601 week-numbering year in which the week containing datetime falls. This function, taken together with g_date_time_get_week_of_year() and g_date_time_get_day_of_week() can be used to determine the full ISO week date on which datetime falls. This is usually equal to the normal Gregorian year (as returned by Since 2.26