Summarize this article in one sentence.
This is the perfect time to photograph the lights, as it's not too light and not too dark yet. Try to get to the location early, roughly 15-20 minutes before dusk, so you're sure not to miss the ideal photographing time. Check to see when the sun is going to set so you can make a plan to arrive before dusk. If you take the pictures earlier, the lights won't look lit in the photos, and if you take the pictures after the sun has set, then you won't be able to see the background. When the Christmas lights look like they're shining brighter against the darkening sky, it's time to start taking pictures. Continue taking pictures of the lights until you're satisfied with your collection or the sun completely sets. Since you're using a slower shutter speed, your photos are going to be more affected by any wobbliness or movement. A tripod is necessary to keep your photographs stable and not blurry. Set the tripod up on stable ground before dusk so that you have time to make any adjustments. If you don't have a tripod, try balancing your camera on the hood of a car or another stable surface. If you're using your phone, consider investing in a portable tripod made for your specific type of cellphone. Your camera will require different settings depending on how close or far you are from the Christmas tree lights. Decide exactly what you want to capture in your photo, such as the details of the ornaments on the tree, or a decorated house with lots and lots of lights that is best seen from far away. For example, a picture of a close-up of a Christmas tree will likely require less lighting than a picture of a house lit up when the sun has set. If you're taking pictures of your Christmas tree inside during the daylight, make sure you take it from the right angle. Avoid backlighting to ensure your picture doesn't come out super dark and be aware of how the windows will impact the lighting. If you're taking the picture indoors at night, try to dim the lights in your house so that the Christmas tree stands out but can still be seen. Take pictures from several different angles with different levels of lighting to see which one looks best.

Summary:
Aim to begin shooting at dusk. Bring a tripod to keep your shots stable. Choose how close or far away you'll be from the lights. Find the right lighting if you're shooting indoors.