Webset a countdown and alarm by the hours, hours, or minutes of the 3 minutes 30 seconds. Weba 3 min 30 sec timer. Use this timer to easily time 3 minutes 30 seconds. Webset a countdown timer for 3 minutes and 30 seconds and we'll alert you when it. Webclick the start button to start the timer. Use the box below to create a new timer. Websep 29, 2024 · the timer will tell you when your 3 min and 30 sec has run out. Web3 minute and 30 second…