Learn how to use timer on your Samsung Galaxy S4 Active. You can use this option to set a countdown timer. Use a timer to count down to an event based on a preset time length hours, minutes, and seconds.
From the Home screen, tap Apps icon > Clock > Timer.
The Minutes field is highlighted and set to 1 minute. Use the keypad to set the number of minutes you want.
Tap the Hours field to set hours if desired. As you tap different fields, they will become highlighted.
Tap the Seconds field to set seconds.
Tap Start to begin the timer and tap Stop to pause the timer.
After stopping, tap Restart to continue or tap Reset to set the timer back to the original setting.