janetdog wrote:
I'm pretty sure M$ runs on a unix clock also. Unix time looks impressive but, It doesn't work. I lose about a minute a month. Unfortunately, The atomic clock updater is a huge security risk. My firewall by default won't allow it to connect. I have to update my time every few months manually (cell phone time) or secure internet services (e-mail, banking, logins) will deny the connection as counterfeit!
first off all, pc systems use the internal clock of your computer (on your motherboard). The timer-counter is programmed by the BIOS to generate an interrupt every 54.936 milliseconds, or about 18.206 times per second
The software clock (wether it be in a unix environment or windows environment) is synchronized with the hardware clock at start up.
Typically a hardware clock loses about 5 or 6 seconds per day (in extreme it's varying from 1-15 seconds depending on the quality of the oscillator)
Changing your clock via windows or unix or whatever os is just sending a message to your bios to update your hardware clock to a new time.
When you turn your pc off, your hardware clock keeps running thanks to battery technology (if you didn't know so, your computer has a battery within, so if you see time being reset every time you start your pc, it's time to change the battery)
Anyway stating that M$ uses unix time is by this disproven
Unix time is a way of measurement, it measures the amount of seconds that have past since 1-1-1970. It's not a way of keeping time
