Search:

https://www.timeanddate.com/worldclock/canada/vancouver

Your /etc/ntp.conf file is the same as mine. Your problem must be elsewhere.

No doubt you read in:
http://knoppix.net/wiki/Cheat_Codes#Micro-Remastering

'Google is your friend', e.g. :

https://wiki.debian.org/NTP
https://wiki.debian.org/DateTime
https://linuxconfig.org/how-to-setup-ntp-server-and-client-on-debian-9-stretch-linux

et alii.
...

The ntp package?

Then that's set at UTC already?

Useful reads:

http://knoppix.net/wiki/Cheat_Codes

http://knoppix.net/forum/threads/31161-Time-problem

BIOS time (hardware clock) --> UTC

/etc/adjtime --> UTC [instaead of LOCAL]

/etc/timezone ---> America/Vancouver

and maybe in :
/media/sd__/boot/syslinux/syslinux.cfg
LABEL knoppix...

or:

/home/knoppix/.config/lxsession/LXDE/desktop.conf

/home/knoppix/.config/gtk-3.0/settings.ini ?

Run LxAppearane?