When I take photo's during night some are dark and some came out right. When I take photo's where lights are involved some came out with a yellow tone and others right. What is the best settings to take photos during night and day?
Hi there Janetta and welcome!
There are so many different scenerios that affect which settings should be used for a particular shot. It's honestly difficult to say precisely which are "best."
We have entire sections at digicamhelp with techniques and tips about taking photos under differing conditions. When you have some time, you may wish to take a peek here:
http://www.digicamhelp.com/taking-pictures/index.htmThe thread Mike referred you to is a good place to start regarding suggested solutions to the problems you sometimes face when taking photos at night. A couple of thoughts with reference to your camera.
If you're using the flash, it's important to stay within the range specified in your camera manual. Your maximum flash range is about 10 feet. Even if you're within the range, the surrounding lighting may cause the color cast in photos. This is very common and can be adjusted by changing the White Balance Setting.
With your camera in the Record mode menu, select a different white balance setting instead of Auto. Your options are Auto, Daylight, Cloudy, Sunset, Fluorescent, Tungsten. Selecting the Tungsten setting is your best best for removing the yellowish tone.
Here's some information on White Balance:
http://www.digicamhelp.com/white-balance/The times you change the White Balance Settings, try not to do what I sometimes do. Forget to put the white balance setting back to Auto.

:-/ Auto white balance works very well for most outside photos.