Individual Instagram Stories have a limit of 15 seconds for video can content. However, using Instagram’s segments tool, you record a longer video. The Segments tool then automatically splices this longer video into 15 second segments, that will play consecutively for your viewers. To do this, simply:

(A) Upload the longer video into the bulk uploader.

(B) Add the longer video segment into a branded template.

(C) Hold down the record button for the duration of your take.

(D) Enable ‘Segments’ under ‘Story Settings’.

You’ll have to cut up videos longer than a minute yourself, which you can do on your camera roll, close to what we showed you above. CutStory or Instasize are two applications that will support you do this.
You can film up to ten 15-second Stories in a single take if you’re recording your Instagram Story live in the Instagram app.