Video is everywhere right now in the world of social media and it can help connect and engage you with your audience. If you haven’t already begun to post video content on a social media platform, you most likely have considered it.
However, depending on what platform and feature you are using, video length can differ, from a difference of seconds to minutes. You need to make sure your content fits to wherever you are posting.
For example, posts to Instagram feed have a maximum time of 1 minute, but on Stories it is 15 seconds and Reels varies from 15 seconds to 60. Facebook meanwhile has a limit of 240 minutes, but it’s best to stay away from that and aim to keep your content beneath 1 minute.
Source: https://blog.hootsuite.com/how-long-should-a-social-media-video-be/
