Well, it is very difficult to say the exact time for colored contacts. But generally speaking, it can last about a year. First, you should know that it can last one year, only when you keep good hygiene and don't wear them everyday for the entire year. And also you continue keeping them clean. Besides, it is important for you to blink frequently for if you do not blink frequently they will dry out and start to blur. And in some cases, it can possibly give you a bad infection. In addition, it depends on the brand you choose. For the sake of the safety, you should wear them with high quality. So that it can be safer for your eyes.