This detailed tutorial / manual video will explain the settings and operation of the Casio LF-20W, how to set time, date, alarms, timer, and stopwatch (LF20W Twin Graph). You can use the chapters to jump between subjects, but I'd recommend following each step for the best result :)

By the way, I just realized there are many grammatical errors here and there, such as "it will return$..." and so on. Sorry if it bothers you, but hopefully, the video is still useful. Thanks! :)

00:00 Timekeeping Mode
00:20 Select T1/T2/T3/T4
00:48 Auto Display / Demo Mode
01:14 LCD Check
01:50 Active City for T1
02:06 Mute Button Operation
02:52 Setting Time
04:32 Time Format 12/24H
04:49 Setting Date
05:17 Backlight Length
05:48 Setting T2/T3/T4
06:44 Swap T2/T3/T4 to T1
07:55 World Time
08:17 Swap/Assign World Time to T1
09:02 DST for World Time
09:35 Setting The Alarms
11:11 Hourly Signal
11:27 Countdown Timer
12:42 Stopwatch

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