To select automatically update the time, choose the time zone from the Time Zone menu. Set time automatically using NTP is activated by default to use NTP (Network Time Protocol) servers from an internal list to set time automatically. Automatically adjust clock for daylight saving time is also activated by default to enable automatic adjustments for daylight savings time.If you want to set your time manually, clear Set time automatically using NTP. Select the time in the 24-hour format using the Time (hh:mm:ss) menus and the date from the Date menus.Selecting Display UTC in logs (instead of local time) specifies the use universal time (UTC) rather than local time for log events.Selecting Display date in International format displays the date in International format, with the day preceding the month.Selecting Only use custom NTP servers directs SonicOS to use the manually entered list of NTP servers to set the firewall clock, rather than using the internal list of NTP servers.