Hi, as stated here, the latest Sentinel images should be available on Sentinel Hub within a day of acquisition.

We put a lot of effort to make data available as soon as possible. However, we depend almost entirely on how fast the data provider can process and disseminate the data.

For Sentinel products, ESA usually makes them available on their OpenHub in 6-12 hours (target timing is 3-6 hours, sometimes it takes longer, even more than one day). We instantly pull data down but as it takes some time to download complete data, it might take up to one additional hour before they are available on Sentinel Hub.