Instagram to allow up to 60 seconds videos on Stories
Instagram is testing on its platform to upload 60 seconds story videos which will be last for 24 hours after uploading. From the previous 15 seconds videos, the maximum length of the videos that can be uploaded will change to 60 seconds. 
Instagram has been notified for some users about this feature. Currently, if you record or upload a video longer than 15 seconds, it will automatically be split into multiple different Stories. However, with this new change, users will be able to post videos to Stories that are up to 60 seconds long without having to split them. It is also revamping the interface to make it easier for users to use.
It’s unclear when or if Instagram will make these changes available to all users around the world, as right now only a few users can post longer Stories.
