Time Settings
Hold MENU, and select System > Time.
Time Format: Sets the watch to show time in a 12-hour, 24-hour, or military format.
Date Format: Sets the display order for the day, month, and year for dates.
Set Time: Sets the time zone for the watch. The Auto option sets the time zone automatically based on your GPS position.
Time: Allows you to adjust the time if the Set Time option is set to Manual.
Alerts: Allows you to set hourly alerts, as well as sunrise and sunset alerts that sound a specific number of minutes or hours before the actual sunrise or sunset occurs (Setting Time Alerts).
Time Sync: Allows you to manually sync the time when you change time zones, and to update for daylight saving time (Syncing the Time).