Want to switch from 24 hour clock - Kikkerland Clap On Alarm Cube Clock

Dozens of models to choose from. All questions on Fixya need 'make model (what it is)' as the first 3 words.

Here are some guesses. The 'control cover' is where you put the back-up battery.

To change the 12/24 hour time format, open the CONTROL COMPARTMENT COVER on the bottom of the clock and adjust the 12/24 TIME FORMAT switch to the desired format .

Self-Setting Clock - Brookstone

Instruction Manual - Brookstone

Brookstone https://manuals.brookstone.com > ... PDF 12/24 HOURS TIME DISPLAY SETTING 1. The "12h" or "24h" will start flashing in LCD2 (Default setting 12h).

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  https://manuals.brookstone.com > ... PDF
  Features: x WWVB Radio Controlled Clock (Atomic Clock) x Time in 12/24 hour format x Manual time setting option x Time Zone setting: +/- 12 Hours from GMT.

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Setting The 12/24 Time Format; Setting The Daylight Savings ...

ManualsLib https://www.manualslib.com > ... > User manual
Brookstone TIMESMART Self-Setting Clock Radio Manual Online: setting the 12/24 time format, Setting The Daylight Savings Time. The 12 Hour Format Is Set As ...

Try this

Setting the 12/24 time format The 12 hour format is set as the default. To change the 12/24 hour time format, open the CONTROL COMPARTMENT COVER on the bottom of the clock and adjust the 12/24 TIME FORMAT switch to the desired format. Close the CONTROL COMPARTMENT COVER.

To change the time zone, open the control compartment cover on the bottom of the clock. Locate the "Time Zone" switch and set it to the appropriate time zone for your area. Six time zones are programmed into your clock, "A" for Atlantic, "E" for Eastern, "C" for Central, "M" for Mountain, "P" for Pacific and "H" for Hawaiian. Once you've chosen the correct time zone for your Brookstone digital desk clock, you must select whether you want the clock to operate using the 12-hour or 24-hour format. The clock is set to the 12-hour format by default. If you'd like to change the setting to the 24-hour format, locate the "Time Format" switch on the bottom of the clock and flip it to "24-hour".
You can also decide whether to turn your clock's automatic Daylight Savings Time feature on or off. If you turn the feature on, your clock will automatically move forward by one hour at 2:00 a.m. on the first Sunday in March and fall back by one hour at 2:00 a.m. on the first Sunday in November. To choose your preference, locate the "DST" switch on the bottom of the clock and flip it to "Auto" or "Off".

Read more: http://www.ehow.com/way_5585650_brookstone-digital-desk-clock-instructions.html#ixzz2phA7kQ1b

Some clocks are only 12 hour and some 24 hour and others have both options and this you will find on the inside of the clock on the movement. If there is no option on the movement then you cannot change it.

Press and hold the "clock" button. You need to hold it for what seems like a long time - 10 seconds.

It's in the manual which is available at Bose.com

To set AM/PM (12 hour) or Military (24 hour) time - Press the On/Off button once to turn your Wave radio off.

Press and hold Clock Set, and then press On/Off to switch between AM/PM (12 HR) or military (24 HR) formats

To set AM/PM (12 hour) or Military (24 hour) time - With the system off, hold down Alarm Setup and press On/Off to switch between AM/PM (12 hour) and you're done .

To switch to the 24-hour standard
Press CLOCK while pressing SHIFT on the remote control and
then press S within 4 seconds.
Repeat the same procedure to restore the 12-hour standard.

When setting-up the time (by pushing the "mode" button), the alarm time set comes up first, followed by the time set.
When setting the proper hour in this mode, simply continue through the military "24 hour" cycle and the second cycle of 24 hours will be in the 12 hour format.
Continue through and finish the mode set-up function and your up and running. --

It should be in your users manual but if you cant find it try this # 905-940-5089 and tell them what you need .. Good Luck