Calculate Video Segment Duration
Find the length between a start timestamp and an end timestamp.
Practical Example
A segment from 01:20 to 02:05 lasts 45 seconds.
Factors That Affect the Result
Timestamp precision, frame rate and whether boundaries are frame-accurate can affect editing decisions.
Frequently Asked Questions
Can the segment cross an hour?
Yes.
Does this cut the video?
No.
Can I use decimal seconds?
Use the precision supported by the tool.
Related Tools
Video Segment Duration Tips
Segment duration is the difference between a clip’s end and start time. Use the same time format for both values and verify that the end point is later than the start point. This is useful when planning edits, chapters, ads, reels, training clips or exports where precise clip length affects pacing, file size and delivery requirements.
Methodology and Practical Limits
Segment duration is end time minus start time. Editing systems may use frame-based boundaries, so a requested timestamp can fall between frames; for frame-accurate cuts, convert boundaries using the project’s actual frame rate and timebase.