in florida you must dim your headlights from the oncoming traffic at 500 feet. and from the rear at 300 feet.
Headlights are used during times in which it may be hard to see. In most states, headlights must be used when driving from dusk before sunset to sunrise.
When visibility is 300ft
according to Florida handsbook, you must dim your bright headlights within 300 feet of the vehicle ahead.
Due to law changes headlights technically are allowed on at all times even during the day and MUST be on in the evening when it starts to get dark
... As i know it, In every state in the U.s. A street legal motorcycles must have working turn signals, headlights, ect. so Yes.
You must have two headlights, all other lights are in fact not headlights and just additional light aids.
You would not drive it at night or when the law says you must display headlights.
5PM to 6AM
Attach it to the operator at all times
While it is mostly understood that any time visibility is reduced (fog, smoke, snow, rain, etc) you aught to use your headlights, this answer cannot be more specific unless you specify the locality you are driving in. Laws vary around the world and from jurisdiction to jurisdiction.
In the year of 2009, there were over 595,000 registered motorcycles in Ontario, Canada. If you want to drive a motorcycle in Ontario, they must be registered.