GDateTime *datetime;
gint64 full_time;
+ g_return_val_if_fail (tz != NULL, NULL);
+
if (year < 1 || year > 9999 ||
month < 1 || month > 12 ||
day < 1 || day > 31 ||
* - \%C: the century number (year/100) as a 2-digit integer (00-99)
* - \%d: the day of the month as a decimal number (range 01 to 31)
* - \%e: the day of the month as a decimal number (range 1 to 31)
- * - \%F: equivalent to `\%Y-\%m-\%d` (the ISO 8601 date format)
+ * - \%F: equivalent to `%Y-%m-%d` (the ISO 8601 date format)
* - \%g: the last two digits of the ISO 8601 week-based year as a
* decimal number (00-99). This works well with \%V and \%u.
* - \%G: the ISO 8601 week-based year as a decimal number. This works