to properly answer this question, let`s see your description:
According to that description, it does seem to have some similarities with King Crimsom in the way it affects the perception of time, but without cutting away the existance of said interval of time. To differentiate it, you can set some limitations and/or figure other uses for it.
Now, that being said, dont feel down if a power you make has some similarities to powers in other stories. There is a reason there are many stories with people with super strenght or fire powers among others. A power is not the only element that defines a character.