FORERUNNER 255 SERIES Owner’s Manual

Time Settings

Hold UP, and select System > Time.

Time Format: Sets the device to show time in a 12-hour, 24-hour, or military format.

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 it is set to the Manual option.

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).

Sync With GPS: Allows you to manually sync the time when you change time zones, and to update for daylight saving time (Syncing the Time with GPS).

Setting Time Alerts

  1. Hold UP.
  2. Select System > Time > Alerts.
  3. Select an option:
    • To set an alert to sound a specific number of minutes or hours before the actual sunset occurs, select Til Sunset > Status > On, select Time, and enter the time.
    • To set an alert to sound a specific number of minutes or hours before the actual sunrise occurs, select Til Sunrise > Status > On, select Time, and enter the time.
    • To set an alert to sound every hour, select Hourly > On.