Felite style watches from the watch brand Casio are radio-controlled, meaning that they receive a signal from atomic clocks through radio transmission, sending the correct time to the watch at all times. The watch also automatically accounts for Daylight Saving Time and adjusts when the user travels between time zones. Atomic clocks, which are located at positions throughout the world, transmit a signal with information that is precise within less than one second. Setting a Casio Felite watch requires only a few steps.
Look at the watch before attempting to set it, as it may already be displaying the correct time. The default setting is Daylight Savings Time, Eastern Time Zone. If you live in the Eastern Time Zone, and it is Daylight Savings Time, the watch should already be accurate.
Look at the small tower signal on the upper right hand corner of the face watch. If the tower icon is blinking, the watch needs to be set. If it appears solid, the time and date have already been set.
Press down the button on the right-hand side of the watch for 2 seconds until the time zone begins to flash on the watch.
Repeatedly press the button on the right-hand side of the watch until the correct time zone is displayed. Atlantic Time (ATL) is displayed as GMT-4, Eastern Time (EST) is GMT-5, Central Time (CST) is GMT-6, Mountain Time (MST) is GMT-7, Pacific Time (PST) is GMT-8, Alaska Time (ALA) is GMT-9, and Hawaii Time (HAW) is GMT-10. GMT stands for Greenwich Mean Time.
Once you have reached the correct time zone, stop pressing the button on the right-hand side of the watch and wait approximately 10 seconds. The watch will return to normal display, and the correct time and date should be set.
Adjust the watch if it is not currently Daylight Savings Time where you live. Press the button on the right-hand side of the watch until "DST" is displayed on the watch face. Press the button again until "DST Off" is displayed. The watch will no longer be set to automatically adjust for Daylight Savings Time.
Note that if you wish to change the watch display from the standard 12 hour display to a 24 hour display, press the button on the right-hand side of the watch until "24-h" is displayed on the watch face.