[Solved] Difference between Clock and NTP Client?

Really noob question…

I setup the NTP Client (pointing to some internet time sources). How do I tell my router to use the time obtained from the internet time source? When I go to the System Clock I can manually set the time and date and time zone, but how do I tell the System Clock to use the time obtained via the NTP Client?

Update: after waiting for the NTP sync, the System Clock updated automatically to the correct time.