I used your instructions to "reset" clock. I did but I have same problem with time. The PROBLEM is how to advance time to adjust to "daylight savings time"? Roy

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.

If your clock is flashing 12:00 then do this:
Touch the + or - buttons whilst the display is flashing to adjust the time. The display stops flashing after 5 seconds and time is displayed.
To adjust clock time : press mode button 4 times until clock symbol is displayed. Use + or - buttons to adjust time.

Resetting: 1. Remove batteries from both the outdoor transmitter and the Temperature station. 2. Wait at least 30 seconds and then repeat the procedures specified in Setting up (above). Note: Always wait at least 30 seconds after removing the batteries before reinserting, otherwise start up and transmission problems may occur. Also, remember when insertting, that both units have to reset and to always reinsert the batteries to the transmitter first

Instructions

1. • 1 Insert the batteries into the clock and verify that the clock's display is functioning.
     
   • 2 Set the correct time-zone and Daylight Saving Time (DST) switches. The switches are on the back of the clock. Select EST if you are in Eastern Standard Time, CST if you are in Central Standard Time, MST if you are in Mountain Standard Time, or PST if you are in Pacific Standard Time. The DST selector should be set to "off" or "on" depending on the laws of your state.
     
   • 3 Wait 15 minutes. The clock should synchronize automatically.
     
   • 4 Set the clock manually using the buttons on the back panel if the clock does not catch the radio signal within the first 15 minutes. Push the correct button to advance the month/day/year on the calendar; use the MODE button to set the hour and minute.
     
   • 5 The clock should adjust itself within 48 hours to match the atomic signal. Verify that the clock is receiving the signal by checking the front display. You should see the image of a tower with circular lines at its top.
     

Read more : http://www.ehow.com/how_5698886_set-sharp-atomic-wall-clock.html

Put it into settings and then adjust time/date. It's not related in any way to temperature.

if it won't trip it, the on pin is not lining up right and u need to take it off and put it making sure it is right. if that's not it u got a bad timer

If you have an atomic clock/watch that is not showing the right time, you could have one or two separate problems. First, the clock may not be set for the correct time zone. Second, the clock may have a manual switch to adjust the time for daylight savings time. Each of these problems can make your clock display the incorrect hour of the time, especially after you change the batteries and your clock "forgets" some or all of its prior settings.
Check the back of your clock to see if there is a button or switch to set the correct time zone. If your clock appears to be set to your time zone, change the switch to another time zone and see whether the clock moves forward/backward to adjust. Once it has finished adjusting to the new time zone, adjust the clock back to your time zone to see whether it will now correctly reset to display the time.
I have seen atomic clocks that have manual adjustments for these settings as well as ones that adjust automatically other than the time zone. If you provide the manufacturer and model number of your clock, we should be able to provide more detailed instructions.

Press and hold TIME while you press HOUR or MINUTE to advance either.

Thanks for using FixYa - a 4 THUMBS rating is appreciated for answering your FREE question.

Press and hold the CLOCK button until you hear a beep. Change the hours by pressing the H (Preset 4) button until the numbers advance to the desired time. Change the minutes by press the M (Preset 5) button until the numbers advance to the desired time. When you are finished, press the CLOCK button.
Vehicles without CD Player
Adjust the hours by pressing and holding the CLOCK button, then pressing the H (Preset 4) button. Adjust the minutes by pressing and holding the CLOCK button, then pressing the M (Preset 5) button
You can quickly set the time to the nearest hour. If the displayed time is before the half hour, press and hold the CLOCK button until you hear a beep, then press the R (Preset 6) button to set the clock back to the previous hour. If the displayed time is after the half hour, the clock sets forward to the beginning of the next hour.
For example: 1:06 will reset to 1:00 or 1:52 will reset to 2:00
Hope this gets you there.

Clock set
If the clock is not displayed with the ignition
switch in the ACC or ON position, you need to
select the CLK-ON mode. Press the MENU button
repeatedly until CLK-OFF mode is displayed.
Use the TUNE/SEEK button to enable CLK-ON
mode.
1. Press the MENU button repeatedly until
CLK-ON mode appears.
2. Press the MENU button again, the time will
start flashing.
3. Press the TUNE/SEEK button
or to adjust the hour.
4. Press the MENU button again; the display
will switch to the minute adjustment mode.
5. The minutes will start flashing. Press
TUNE/SEEK button or to adjust
the minutes.
6. Press the MENU button again to exit the
clock set mode.
The display will return to the regular clock display
after 10 seconds, or press the MENU button
again to return to the regular clock display.
Resetting the time
Hold the MENU button down and then press the
TUNE/SEEK button, the time will reset as follows:
c If the displayed minutes before the reset are
in the range of :00 - :29, the hour displayed
before the reset will stay the same and the
minutes will be reset to :00.
c If the displayed minutes before the reset are
in the range of :30 - :59, the hour displayed
before the reset will advance by one hour
and the minutes will be reset to :00.
For example, if the MENU button and the
TUNE/SEEK button are pressed while the time
displayed is between 8:00 and 8:29, the display
will be reset to 8:00. If the buttons were pressed
while the time was between 8:30 and 8:59, the
display will be reset to 9:00. At the same time the
display will return to the audio.

Copied from Alpine-usa.com support page:
Setting item: CLOCK ADJUST
Further setting items : HOUR / MINUTE / TIME ADJUST
Setting content: 1-12 / 0-59 / RESET
• The clock-adjusting mode is canceled when the power is turned off,
when [RETURN] or [CONTROL] is touched.
Setting item: DAYLIGHT SAVING TIME
Setting content: OFF / ON
Setting the Time
HOUR: Adjust the hour.
MINUTE: Adjust the minute.
RESET: If the clock shows less than 30 minutes past, the
minute will be “: 0”; more than 30, the hour
advances.
Setting Daylight Saving Time
ON: Place the Summer Time mode ON. The time advances by
one hour.
OFF: Return to the ordinary time.