Using the Alexa Timer is so easy, it’s the first skill many Echo smart speaker owners try out. Just say, “Alexa, set a timer for 12 minutes,” to start a countdown. When we bought our first Echo Dot ...

Comprising a microprocessor, an LCD, a 32.768-kHz crystal, and little else, the basic countdown-timer circuit in Figure 1 operates from a commonly available CR2032 lithium-coin-cell battery. Based on ...

Which countdown clock is best? The year is quickly coming to an end, and many have started to make plans for their New Year’s Eve celebrations. You might have the perfect venue in mind and have ...

NASA's new countdown clock for space missions is a lot like a football stadium display and way more advanced than the old analog one it's replacing. Freelance writer Amanda C. Kooser covers gadgets ...