Currently, Dasheroo will look for new updates from YouTube every hour and your insights will be updated if any new data is available.
Note: YouTube’s Analytics API provides new data only once daily so there may be some latency at times while we wait for their site to provide us with the most recent updates.
This information is documented on YouTube’s website (see screenshot) in case you have additional questions.
You’ll also be able to get more information on this topic by looking within the Analytics module of your YouTube channel. Click here to learn more: https://support.google.com/youtube/answer/1714323