The orange ring around the Play/Pause button will be visible when the countdown is paused. When the button is flush with the unit, and no orange is visible, the timer is counting down.
Paused:
Playing:
The orange ring around the Play/Pause button will be visible when the countdown is paused. When the button is flush with the unit, and no orange is visible, the timer is counting down.
Paused:
Playing: