date, hwclock, and timedatectl commands - something I noticed

Recently I've been installing Trisquel on some laptops that haven't been powered on in a long time, and so the date was set incorrectly. Editing the date and time in the GUI appears to be broken, but thanks to the manual page at < https://trisquel.info/en/wiki/set-hardware-clock >, I had no trouble changing the date and time using the command line.

I noticed something strange though. Although that manual page and a forum post at < https://trisquel.info/en/forum/time-and-date-set-change-hardware-clock-affects-other-oses > both suggest that timedatectl does not set the hardware clock, when I ran the timedatectl command, it does appear to update the hardware clock. Maybe I am misunderstanding something but it seems like the section about using the hwclock command can be removed from the manual page I mentioned earlier.

I did some tests and it seems like:
* date sets the system clock but not the hardware clock
* hwclock can copy the time from the system clock to the hardware clock, or vice versa
* timedatectl sets both the hardware clock and system clock

Additionally, I noticed hwclock needs root to even display the time, but timedatectl can display or modify the time without root.