I have a Casio 4304 and am having problems setting my time zone. If I set the watch to -1 the watch is one hour behind British Daylight saving time, if I alter the zone to 0 the watch moves two hours forward. I only want it to go one hour. Help please, Andrew Ackland

If your watch is exactly an hour out, then you need to set the daylight saving time (DST) via the mode button.

If this is not the case, then I cannot help you.

~Good luck

It's most likely because of Daylight Saving Time. Your clock receives a signal through the air once a day from the actual atomic clock, much like a cell phone receives the time from your cell phone service provider, and it automatically resets itself to the exact time each time it receives this signal. Remember that the middle of the year (the second Sunday in March until the first Sunday in November in the US) is Daylight Saving Time for much of the United States. The clock has an option that allows you to set whether you are observing Daylight Saving Time or not. If this is set to "off", the time will be one hour behind until Daylight Saving Time ends (November 7th). Make sure this is set properly, and your problem will be solved.

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It sounds like your watch is on daylight saving time (DST) or it is set to the wrong time zone.

If you press the "Mode" button you will enter the settings menu and you should be able to change this by pressing one of the other buttons. Some experimenting will be needed.

It may be set to DST (daylight saving time), see instructions for changing this.

You can get instructions from the Casio web site.

Go to the casio web site "casio.com".

Select "support" and the "manuals", watches;

Accept terms

Select "watch manual archive"

Read the number of the back of your watch and enter it into the search box

To change from 24 hour to 12 hour, you hold down the "Mode" button until it switches from 24 hour to 12 hour or vice versa. To change the time zone, you hold down the "Set" button until the time zone that you set it in flashes (like "LAX" on my watch). Then you press the "Receive/Start/Stop" button to choose the specified time zone you want. To set for daylight savings time ("DST" on the watch), after holding the "Set" button and having the time zone flash, you could press the "Mode" button. It will give you a few options for the daylight savings time (Auto, On, or Off). I chose the "On" option, which immediately changed for daylight savings time. If you manually want to change the time, you could hold down the "Set" button and keep pressing the "Mode" button until the time starts flashing on your watch, then pressing the "Receive/Start/Stop" button until you change it to the time that you want. You could also set the watch to beep or chime after pressing the set button if you wanted to know that piece. You hold down the "Set" button when you are done to get it to stop flashing. These instructions worked for my Timex T5G341 Universal Radio Control Watch. I hope this helps.

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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I had the same problem following recent daylight savings time (DST) change. The watch has three DST mode settings (ON, OFF, and AUTO). You get to the setting mode by pressing and holding the "adjust' button until the city time zone indicator starts to flash. Then press the "mode" button. This should give you the DST setting. Now press the "receive" button to cycle through the ON, OFF, and AUTO modes for DST. I set it for AUTO. I then existed the setting mode by pressing "adjust" again.

Now you can initiate a manual update of the time by pressing and holding the receive button. Put your watch by a window and make sure the signal strength indication is showing level 4 (full picture of satellite dish on my version). Give it a few minutes to down load new time.

After doing this the watch corrected itself and now shows correct time. Other wise I assume you could set the DST function to ON or OFF as well depending on whether you need to add or subtract the hour from the time.

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.