'This timer silently counts down to 0:00, then alerts you that time is up with a gentle beep sound.'
Tags: 30 minutes , time , timer , 30 minute , countdown , Clock , half an hour , stopwatch , half hour , 30 00
See also:'This timer silently counts down to 0:00, then alerts you that time is up with a gentle beep sound.'
Tags: 30 minutes , time , timer , 30 minute , countdown , Clock , half an hour , stopwatch , half hour , 30 00
See also:
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