[arch-general] HARDWARECLOCK and systemd

I'm moving to systemd (finally!) and I'm stuck at the HARDWARECLOCK section of rc.conf wiki. How should be configured /etc/adjtime ? I can't find what should be inside it. Also there say: " If this value is not set, then the value stored by hwclock in /var/lib/hwclock/adjtime [...]" but I don't have any /var/lib/hwclock directory. I would appreciate if anyone who already did the jump can share his experiences, thanks!