Question about Casio Atomic-Solar MTG900 Watch

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DST on MTG900

How do I switch to daylight savings time on my MTG900?

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The MTG-900 supports automatic DST which can be activated in the time setting mode.  However, the ROM in the MTG-900 dates from before Congress (in their infinite ability to make mistakes) modified the DST schedule, so, instead of switching at the beginning of April and the end of October (as currently specified), it switches at the end of April and the beginning of October (as previously specified).
I do not believe that there is a way to change the DST scheduling or manually turn DST on or off.  I've resorted to changing the time zone manually and turning off the DST feature.  IOW, I set the timezone to Pacific (LAX) during PST, and, to Mountain (DEN) during PDT.

Posted on May 29, 2009

  • Owen DeLong May 29, 2009

    I made a mistake... THe DST setting has three possible values... ON->AUTO->OFF.


    DST ON -- The watch will add one hour to the WWVB time for the standard timezone specified.
    DST OFF -- The watch will calibrate to the WWVB time for the standard timezone specified.
    DST AUTO -- Will behave as described above.


    I apologize if this created any confusion. I would prefer to edit my previous solution, but, apparently that is not possible.



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If your watch is 1 hour out it could be showing daylight saving time (DST).

If this is the case, then press the mode button until you reach DST and then use the one at 2 or 4 O'clock to turn it off or on as required.

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How to adjust your Skyhawk for Daylight Savings Time (DST) *aka How to get UTC to reflect the correct time when your local time is set*
According to Citizen's website FAQ, their watches cannot determine when daylight savings time goes into effect for all the different time zones so there is no automatic changeover from SMT to normal and back again. If you are on the winter side of the time change (fall back), you'll have to go to the set setting, one click out on the knob and cycle through all the timezones using the B button (the lower one) to change all the settings to OF (for winter) and in the spring change all of the appropriate timezones back to ON (for summer time). Disappointing, I know... for an otherwise great watch this would be my one complaint.

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Dpfellside@hotmail.co.ukwhat is actually meant by daylight saving time. my Citizen watch always indicates this setting is off (I am in U.K.)


Daylight savings time is primarily an USA thing. We set our clocks ahead every Spring in March and hour and back an hour in the fall. The idea was invented by Ben Franklin centuries ago to save energy and it is still done with the same idea in mind. Read elsewhere to see how it saves energy, debatable. Not all part of the country observe DST. Just turn it off and you should be fine. You may need to correct the time.

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Resendly purshased a casio 4772 watch. diplay time and city. trying to get it set for dst. read manual and cant get button (A) to flash. can u help


Hi ...



your watch supports Time Zones , Automatic time Updates, Automatic adjustments of DST.

nightflare_10.jpg







First Verify Correct Home City Is Selected
1. In Time Keeping Mode (That is The Digital Display shows time and Day of week)

nightflare_3.png

2. Press Button (A) long enough to country code start to flash on digital display.nightflare_4.png


3. Press Button (B) or Button (D) to change Country code to current one.
4. After Selecting Desired Country, Press button (A) TWICE.

Now Country Code will be saved on watch.

Supported Country codes are:-

nightflare_7.png


To Activate DST (Daylight Saving Time).
1. In Time Keeping Mode (That is The Digital Display shows time and Day of week)
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2. Press Button (A) long enough to Digital Display start to flash.

3. Press Button (C) TWICE to Display DST Settings.
4. Press Button (D) repeatly to cycle through three DST Options:-
A --> DST is set on Automatic Mode. If Your country uses DST, the watch will Adjust DST Accordingly.
OFF --> DST is set to disabled. No DST is applied to Main Time Settings
ON --> DST is Set to On. DST is applied even if your country doesnot follow DST.
5. Press Button (A) TWICE to save Selected Option.


Default values (Factory Settings) when you bought this watch is
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This way you can set DST

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It could be that you are still on daylight saving time (DST).

I don't know which make of watch you have but there should be a button marked "mode" press this until you reach DST and then experiment with the buttons to change it from on to off.

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You posted this in January, which is not during daylight savings time. The SMT setting doesn't turn on automatic DST switching for a particular timezone; rather, it is a manual override to adjust timezones to DST when it is actually active. There is no automatic DST adjustment for this watch (according to their FAQ). Turn SMT to OF for all timezones during winter months, and ON for applicable timezones during SuMmer Time (SMT).

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1 Answer

Time zone


You don't need to set the watch back an hour.  You just need to turn off the automatic DST adjustment.
Hold ADJUST for several seconds.  Then, when DEN starts flashing (or whatever timezone you are set to), hit MODE The display will change to DST flashing at the top and on or auto flashing at the bottom. Click TIME/MEMO or RECEIVE to change on->auto->off.  Once off is flashing at the bottom, hit ADJUST twice and you will be out of DST mode and everything should be fine.

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You have to get in the right time zone, that’s why you are an hour off (and this may also occur if you are in an area that switches between daylight savings time each spring and fall).
Press mode until ZO appears on the watch face.
Press and hold ADJ. Time zone will begin to flash.
Select start/stop or adjust to get to the right time zone P, C, M, E (pacific, eastern, Mountain, central)
If desired , press mode to select DST (daylight savings time) and press start/stop or adjust to turn it on or off.
Press adjust when done.

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