NEVER!!!!!

There's no count on the times I've seen some idiot driving at night with only his parking lights on because he thinks his headlights are on but he only turned on his parking lights at dusk and never turned his headlights on when it got dark.

He's an invisible bullet waiting to kill someone who pulls out right in front of him while's he tooling down the street at 50..

If you think you need lights on at all, then put your full headlights on so that you don't have to worry about it. And as a previous answer said, the law specifies when your headlights must be on (night, rain, etc.). Better yet, if you don't have daytime running lights, use your headlighs all the time.

When I was taking driver training many turnings of the seasons ago, I was taught that you should never drive with just the parking lights on. It did not matter what time of the day it was. Because of this I wondered what was the point to parking lights in the first place. I finally figured it out when I was on a trip with my parents and we decided to just drive nonstop from Provo, UT, to Santa Barbara, CA. This is a trip that we would normally do over two days. So, we were driving until the wee hours of the morning. During that drive, I saw many semitrucks parked on the freeway on and off ramps with the just their parking lights on. If these lights had not been on, I probably would not have known they were even there. Obviously, the truck drivers had stopped for some sleep. Leaving the parking lights on let others usinging those ramps know that the trucks were there with out putting as much of a drain on the batteries as leaving the headlights on would. Since that time, I have used this trick myself when I have had to pull over to the side of a road after dark to sleep on long drives.

I say never from dawn to dusk. It looks cool until you get rammed by someone who didnt see you.

I use parking lights when I'm stopped outside waiting for someone, at a drivein, or other safe areas. They look cool on my car so I like using them :) but when I'm moving I have DRLs so I can't not have headlights on unless I remove the bulbs...

You should never drive with just your parking lights on. Most states mandate that your headlights be on at all times while driving at night or in bad weather. Also, Fog lights also require headlights to be on along with them.

You should feel free to drive with your parking lights on at any time during the day. Most cars made now come with "Daytime Running Lights." Having your parking lights on during the day helps increase your visibility.

However, you should NEVER use just your parking lights in times of poor visibility, night, rain, etc. Use your headlights...

Nobody answered the question! :-) The only time I've ever driven with just my parking lights is exiting or entering a drive-in theatre while the movie is playing. You drive real slow and be prepared to flash your full beams if some numbnuts doesn't see you and is driving towards you.

When there are within city lights, this is in the UK.

In the UK, it is legal to drive with parking lights on, only within city limits at night. But no one ever does this.

However, in dull weather, or light rain during daylight most people will use them rather than headlights.

However over here they are not called parking lights, but sidelights.

In Norway it is mandatory to drive with your lights on all the time. When you rent a car the lights are automatically on. If you turn your parking lights on so you can see your dash board then it is obvious that you should have your lights on so people can see you. Parking lights only help people from behind you see since all of the tail lights are on the same way when your lights are on. I don't know how many times I have went to change lanes and could not see the jerk behind me because he was only driving with his parking lights on. All on or all off. Parking lights are for when you are parked so you don't blind people coming to wards you or if in a parked situation where other people are in front of you parked and you don't want to burn the back of their head off! LOL.
Jim

One thought.....why do you think they call them "parking lights"?... :)

They are for when your car is parked.....not for driving!