Back=right mouse click.
The System Time and Time Zone settings allow you to:
Use the current system time
Synchronize with your NTP server
Enter the time and date manually
Before starting this procedure, be sure you have:
Selected your time zone
Selected your deployment mode
Configured any mode-specific settings
Configured the network interface information
Configured the static routes
Entered product activation information
Access the System Time page of the Deployment Wizard.
Select from one of the following options:
Current system time - keeps the time already set on the system
Synchronize with the NTP server -
Manually - Set the time and date manually
Set the appropriate time zone.
Select your continent from the drop-down list.
Select your city (or a city near you with the same time as your location) from the drop-down list.
Click Next.
Continue with the Summary section.