Ken tech atomic clock. Followed initial setup. After 3 days clock now off by 3 hours. Am in eastern time zone dst. Assume it switched to another zone. Radio wave was on when noticed.

Digital Clock The time is displayed continuously when the ignition is switched to II or III. At all other times, push in on the lid to display the time. To adjust the time: 1. Lower the lid. 2. Push the minute button (M) and hold it until the numbers advance to the desired minutes. 3. Push the hour button (H) and hold it until the numbers advance to the desired hour. 4. The RESET button allows you to synchronize your clock to the closest hour. If the time on the clock is before the half hour, pressing the RESET button will return the time to the previous hour. If the time is beyond the half hour, the RESET button will change the time to the next hour. NOTE: Be careful not to push the H, M or RESET buttons accidentally. Pushing any of them will change the clock's time setting.

https://www.nissan.co.il/content/dam/Nissan/israel/services/car-books/Nissan-Xtrail-Car-Book-2016-ENG.pdf

Page 4-5

Clock:
Select the corresponding keys to adjust the settings.
• Time Format:
The time setting can be selected from 12 hour
and 24 hour formats.
• Date Format:
The day, month and year display can be selected
from five formats.
• Clock Mode:
Select the clock mode from Manual, Time Zone
and Auto.
When [Manual] is selected, you can set the clock
mode manually from the [SET CLOCK MANUALLY] screen.
Select [Auto] to automatically maintain the time
using GPS.
• Set Clock Manually:
Mode (AM/PM) (where fitted), Hours, Minutes,
Day, Month and Year can be set manually if
[Manual] is selected in the Clock Mode setting.
• Daylight Savings Time:
Turns the daylight savings time on or off.
• Time Zone:
Select the applicable time zone from the list.

Setting the Time (Without Date Display) If your vehicle has an AM/FM base radio with a single CD player and preset buttons numbered one through six, the radio will have a clock button for setting the time. You can set the time by following these steps: 1. Press the clock button until the hour numbers begin flashing on the display. Press the clock button a second time and the minute numbers will begin flashing on the display. 2. While either the hour or the minute numbers are flashing, turn the tune knob, located on the upper right side of the radio, clockwise or counterclockwise to increase or decrease the time. Instead of using the tune knob, you can also press the SEEK, FWD (forward), or REV (reverse) buttons to adjust the time. 3. Press the clock button again until the clock display stops flashing to set the currently displayed time; otherwise, the flashing will stop after five seconds and the current time displayed will be automatically set. To change the time default setting from 12 hour to 24 hour, press the clock button and then the pushbutton located under the forward arrow label. Once the time 12H and 24H are displayed, press the pushbutton located under the desired option to select the default. Press the clock button again to apply the selected default, or let the screen time out. Setting the Time (With Date Display) If your vehicle has a radio with a single CD player or a CD with DVD player, the radio will have a clock button for setting the time and date. To set the time and date, follow these instructions: 1. Turn the radio on. 2. Press the clock button and the HR, MIN, MM, DD, YYYY (hour, minute, month, day, and year) will appear on the display. 220 3. Press the pushbutton located under any one of the labels that you want to change. Every time the pushbutton is pressed again, the time or the date if selected, will increase by one. • Another way to increase the time or date, is to press the right SEEK arrow or FWD (forward) button. • To decrease, press the left SEEK arrow or REV (reverse) button. You can also turn the tune knob, located on the upper right side of the radio, to adjust the selected setting. The date will not automatically display. The only way to see the date is by pressing the clock button when the radio is on. The date with display will time out after a few seconds and go back to the normal radio and time display. If your vehicle has a radio with a six-disc CD player, the radio will have a MENU button instead of the clock button to set the time and date. To set the time and date, follow these instructions: 1. Turn the radio on. 2. Press the MENU button. Once the clock option is displayed. 3. Press the pushbutton located under that label. The HR, MIN, MM, DD, YYYY will appear on the display. 4. Press the pushbutton located under any one of the labels that you want to change. Every time the pushbutton is pressed again, the time or the date if selected, will increase by one. • Another way to increase the time or date, is to press the right SEEK arrow or FWD (forward) button. • To decrease, press the left SEEK arrow or REV (reverse) button. You can also turn the tune knob, located on the upper right side of the radio, to adjust the selected setting. The date will not automatically display. The only way to see the date is by pressing the MENU button and then the clock button when the radio is on. The date with display will time out after a few seconds and go back to the normal radio and time display. 221 To change the time default setting from 12 hour to 24 hour or to change the date default setting from month/day/year to day/month/year, follow these instructions: 1. Press the clock button and then the pushbutton located under the forward arrow label. Once the time 12H and 24H, and the date MM/DD/YYYY (month, day, and year) and DD/MM/YYYY (day, month, and year) are displayed. 2. Press the pushbutton located under the desired option. 3. Press the clock or MENU button again to apply the selected default, or let the screen time out

Yes this is a little confusing!! It is set from the Nav window. Depress Nav and scroll down to clock.

Depress clock and you can daylight savings option or set clock

Hope this helps?

Other Jeep Radios
1. Press the MENU hard-key on the right side of the
radio.
2. Then press the System Setup soft-key to get to the
System Setup menu.

Set the Time
1. Press the time soft-key in the lower left corner of the
screen.
The minutes are set by the GPS system.
2. Press the Set Time Zone soft-key to change to the
desired time zone.
3. Press the Daylight Savings soft-key to switch Daylight
Savings on or off.
It is possible to set up your own time (ahead or behind
actual GPS time), by pressing the USER CLOCK soft-key.
NAVIGATION 15

Hopefully your owners manual will have this info. My database won't have any info on a vehicle this new.

for better result download the pdf file
MERCEDES BENZ E320 E420 E430 FACTORY SERVICE SHOP MANUAL 1996 2002

Make sure the clock is set to the correct time zone before trying to set the time.

So just to sumarize--when you press the INFO Button and select ADJUST CLOCK, for this time of year --Winter--set Daylight Savings Time to OFF--that will immediatly move your clock back 1 hour. All that selection does is just toggle 1-hour ahead and back--but it doesn't automatically select when DST is in use. Then select AUTO ADJUST to ON and leave it there; this will make sure your clock is always locked to GPS and is always accurate.

go into" setup" (small button on right bottom of nav controll) and under the clock settings turn off the auto time change and adjust the time 1 hour

Press "NAV" to go to the main navigation menu.

Scroll down and select "System Settings"

Scroll down and select "Clock Setting"

Make sure "Show GPS Clock" is selected with a red check in the box.

I had to switch "Daylight Savings" from "ON" to "OFF" in order to bring the time back an hour. I assume that I'll just have to switch it back to "ON" in the Spring in order to move the time forward and hour.