I've noticed a discrepancy between the solar radiation data and the sunrise/sunset times for my site. For instance, on March 10 in Virginia Beach, Virginia, the sunlit hours are from 6:21 AM to 6:07 PM, but the solar radiation data with positive values is from 6 AM to 5 PM. After reviewing your website's explanation of how the metrics are calculated over time periods, it appears that the solar radiation data supposed to represent instantaneous values at the indicated times. Can you please clarify this issue?
Discrepancy in solar radiation data with the sunrise/sunset hour.