Time issue is solved finally. What I had to do in my case:

1) As philo recommended earlier:
Check
1) BIOS time (hardware clock) --> UTC
2) /etc/adjtime --> UTC [instaead of LOCAL]
3) /etc/timezone ---> America/Vancouver

4) and maybe in :
/media/sd__/boot/syslinux/syslinux.cfg
LABEL knoppix,
LABEL knoppix64
add inside APPEND: --> tz=America/Vancouver
The path for syslinux.cfg is '/mnt-system/boot/syslinux'.

I also changed - as philo recommended -
'/mnt-system/boot/syslinux/syslnx32.cfg' and
'/mnt-system/boot/syslinux/syslnx64.cfg'
and added inside APPEND: --> tz=America/Vancouver

Thanks for the help!