Bulb White Will Not Stay Off

Hi. I placed a bulb white in a porch light fixture. I created a rule to turn on 1 hour after sunset and turn off at 10pm. It functions as programed. BUT, every morning when I look out the window it is ON. I’ve checked it at random times, 3am, 5am, and it is off. Thinking it came on at sunrise I created another rule to turn bulb off at sunrise. In all instances it is on in the morning after I wake up. Any suggestions? Firmware update?