I have my new MacBook Pro and I'm wondering how the "Set date and time automatically" update works. I have input a NIST server address that I've used for years in this setting. When exactly does my MacBook Pro synchronize the time? Does it synchronize the time just as soon as it connects to the internet? Does is synchronize the time at certain intervals? There doesn't seem to be a manual synchronize time button like Windows 7 has. Is there a way to manually synchronize the time? Any suggestions would be helpful and I thank you in advance.