Count rows filtered by duration

^{Hi pgiorgi1,}

^{According to your description, your question is that you need to count according to the time of each row.}

^{This question is not complicated, but requires you to provide sample files, or illustrate how the time is calculated.}

^{You can try:}

30 seconds to 1 minute =
  CALCULATE(
    COUNTROWS('NOTES (2)')
    ,FILTER(ALL('NOTES (2)')
      ,[Duration] >= 0
      && 'NOTES (2)'[Duration] <=1
    )
  )

^{Best Regards,}

^{Gallen Luo}

^{If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.}