Most of you would have noticed the colon ‘:’ punctuation mark centred on the digital clocks. This colon mark is a time separator. If you have set the 12-hour timing format, then the timer will show the time with a dot in the upper left corner of the display. This indicates that time is now in PM while you’ll find no dot in the corner when the time is in AM. For more assistance, you can read the user manual to understand how it works and how to change the time setting.