5DSTOnProgram MenuThe SET button will moves through the items in the program menu. The + or - button will change these values.WWVB reception ON or OFFTime Zone (Seven Time Zones)Daylight Saving Indicator12/24 hour time formatFahrenheit/Celsius selectionManual time set (Hour, Minutes, Seconds)Calendar set (Year, Month, Date)WWVB Time ReceptionThe WWVB time reception defaults to ON. To turn the WWVB reception OFF:1. Hold the SET button for 5 seconds.2. WWVB and ON will flash in the time display.3. Press and release the + or - button to turn this OFF.4. Confirm with the SET button and move to the Time Zone.Time ZoneThis station offers seven time zones listed in letter format (default is EST):AST Atlantic TimeEST Eastern TimeCST Central TimeMST Mountain TimePST Pacific TimeAKT Alaskan TimeHAT Hawaiian Time1. EST will flash next to the date.2. Press and release the + or - button to select a different Time Zone.3. Confirm with the SET button and move to Daylight Saving Indicator.DST IndicatorDST will default to the ON position as most of the country observes the DST change. The DST indicator shouldstay on all year so the forecast station knows when to switch into or out of daylight savingtime. If you live in an area does not observe the DST change, switch this to the OFFposition.1. DST and ON will flash in the time display.2. Press and release the + or - button to turn DST to OFF.3. Confirm with the SET button and move to 12/24 hour time format.12/24 Hour Time FormatThe time may be displayed in 12-hour or 24-hour format. Default is 12-hour time.Note: When in 12-hour format AM or PM will show in front of the hour.1. 12Hr will flash in the time display.2. Press and release the + or - button to select 24-hour time.3. Confirm with the SET button and move to Fahrenheit/Celsius.WWVBOnTIME ZONEEST12Hr