Duration in Zoom API is different with the duration in cloud recording video

When start a meeting with recording to cloud, during the meeting, I parse the recording, and continue later. After the meeting, when I call the API of Zoom the duration is 40 mins, from recording start time to end time, but when I open the recording video, it show 14 mins, only include the recording time. Which API can return the real recording time of 14 mins?