Comment Re:OpenNTPD: 4 Out Of 5 Stars (Score 1) 79
It sets your local server time immediately if you use -s. Otherwise, it slowly drifts your local clock to the real time, which could take days if it is far off. I always use ntpd -s on boot for systems with no RTC. Or ntpd -s when my clock is way off. The drift feature is designed to keep software from freaking out due to sudden time changes.