- The time you post plays a major part of your organic reach. You want your post to be when your followers are online, as Instagram rewards content that is recent. So changing when you post to meet when your audience is online can help increase your reach.
- Instagram Insights is an important tool to use when trying to establish when your followers are most likely to be active. The more followers who see your post, the more your reach will increase. Thus you want to move your posts to when the most people will likely see your content.
- Depending on your business area and audience, times can differ, sometimes by large margins. For example, HubSpot recommends that B2C companies post on Wednesdays in the afternoon, whilst for educational organisations it is Friday mornings that work better. Make sure you find what works best for your audience.
Source : https://www.socialmediaexaminer.com/how-to-improve-instagram-reach-9-ways/