Having inaccurate time or running a network that is not synchronised can leave a computer system vulnerable to security threats and even fraud. Timestamps are the only point of reference for a computer to track applications and events. If these are inaccurate all sorts of problems can occur such as emails arriving before they were sent. It also makes possible such time sensitive transactions as e-commerce, online reservation and trading in stocks and share where exact timing with a network time server is essential and prices can fall or rise by millions in a second.
Failure to synchronise a computer network can allow hackers and malicious uses the opportunity to get at your system, even fraudsters can take advantage. Even those machines that are synchronised can fall victim, especially when the use the Internet as a timing reference which allows an open door for malicious users to inject a virus into your network. Using Radio or GPS atomic clocks provide accurate time behind your firewall maintaining you security.
NTP Time Servers ensure that all networked computers are synchronized automatically to the accurate time and date, now and in the future, automatically updating the network during daylight saving and leap seconds.
If computer data is ever to be used in a court of law then it essential that the information comes from a network that is synchronised. If the system is not then the evidence may be inadmissible.
Stop users complaining about incorrect time on their workstations
You have control of the configuration. For example you can automatically changes the time forward and back each Spring and Autumn for daylight saving time or set your server time to be locked to UTC time only or any time zone you choose.