The date -k patch is non standard and will be removed in the next
commit.
Tested behavior to be identical with a simple C program:
#define _GNU_SOURCE
#include <unistd.h>
#include <stdio.h>
#include <sys/time.h>
#include <sys/syscall.h>
int main()
{
struct timezone tt;
struct timezone tz;
int a = syscall(SYS_gettimeofday, NULL, &tt);
int b = gettimeofday(NULL, &tz);
printf("%d - %d, %d\n", a, tt.tz_minuteswest, tt.tz_dsttime);
printf("%d - %d, %d\n", b, tz.tz_minuteswest, tz.tz_dsttime);
}
Signed-off-by: Rosen Penev <rosenp@gmail.com>