pkarashchenko opened a new issue, #6832: URL: https://github.com/apache/incubator-nuttx/issues/6832
[Linux mktime|https://linux.die.net/man/3/mktime]: ``` The mktime() function modifies the fields of the tm structure as follows: tm_wday and tm_yday are set to values determined from the contents of the other fields; if structure members are outside their valid interval, they will be normalized (so that, for example, 40 October is changed into 9 November); tm_isdst is set (regardless of its initial value) to a positive value or to 0, respectively, to indicate whether DST is or is not in effect at the specified time. Calling mktime() also sets the external variable tzname with information about the current timezone. ``` [FreeBSD mktime|https://www.freebsd.org/cgi/man.cgi?query=mktime]: ``` The original values of the tm_wday and tm_yday components of the struc- ture are ignored, and the original values of the other components are not restricted to their normal ranges, and will be normalized if needed. For example, October 40 is changed into November 9, a tm_hour of -1 means 1 hour before midnight, tm_mday of 0 means the day preceding the current month, and tm_mon of -2 means 2 months before January of tm_year. (A positive or zero value for tm_isdst causes mktime() to presume initially that summer time (for example, Daylight Saving Time) is or is not in ef- fect for the specified time, respectively. A negative value for tm_isdst causes the mktime() function to attempt to divine whether summer time is in effect for the specified time. The tm_isdst and tm_gmtoff members are forced to zero by timegm().) ``` [OpenGroup mktime|https://pubs.opengroup.org/onlinepubs/9699919799/functions/mktime.html] does not state anything about normalization. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
