I recently replaced my Foscams with Hikvision 4mp turrets. On the Foscams I could turn IR on/off in Blue Iris relative to sunrise/sunset, I really like that feature. On the Hikvision I currently have them on auto for the day and night switch which may be the way I have to leave them. I see where you can schedule day and night in the Hikvisions and make adjustments accordingly, however I don't see a way to do this relative to sunrise/sunset. Is there a way to do this in BI that I am missing? Otherwise it looks like you would have to be continuously adjusting the schedule times to allow for the difference in daylight as the seasons change.