I am looking for a way to automatically syncronize A PC's time with an Internet time server. Before everybody rushes of and calling me a noob, Yes, I know you can tick that option in the Date and Time properties. But, this computer is not always connected to the internet. It is a PC that is used to control a laboratory instrument. It is connected to the network, but not logged in. We can connect this PC to our company's domain by entering a username and password, but we do not want this computer to be connected to the domain all the time due to fears of internet abuse after hours etc. Is there a programme we can make use of to configure the PC to do an update say maybe once a week or so, and only then automaticaly log in with a given username and password? A correct PC time is needed because the data generated are matched to other instruments's data, and an accurate date and time is therefore needed.