Humminbird 597ci - Manual (Page 117)

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Local Time Zone
(Advanced)
Local Time Zone selects your time zone in reference to the time reported by the
GPS receiver when Time+Date is selected as a Digital Readout on the Sonar
View (see Setup Menu Tab: Select Readouts). This menu option is available
when the User Mode is set to Advanced (see Main Menu: User Mode).
To change the Local Time Zone:
1. Make sure the User Mode is set to Advanced, then highlight Local Time
Zone on the Setup main menu.
2. Press the LEFT or RIGHT Cursor keys to change the Local Time Zone
(Default = EST [UTC-5] - Eastern Standard Time).
Daylight Saving Time
(Advanced)
Daylight Saving Time adjusts the time display to account for local Daylight
Saving Time when Time+Date is selected as a Digital Readout on the Sonar
View (see Setup Menu Tab: Select Readouts).
Selecting On adds one hour to the time display adjusted for your local time
zone. Selecting Off leaves the time display as adjusted for your local time zone.
This menu option is available when the User Mode is set to Advanced (see
Main Menu: User Mode).
To change the Daylight Saving Time setting:
1. Make sure the User Mode is set to Advanced, then highlight Daylight
Saving Time on the Setup main menu.
2. Press the LEFT or RIGHT Cursor keys to turn Daylight Saving Time On
or Off. (Off, On, Default = Off)
Setup Menu Tab