I am a novice, we encounter problems: iphone how timer starts counting from 0 ah? Seeking help

I am a novice, we encounter problems: iphone how timer starts counting from 0 ah? Seeking help
Reply:
why????
Reply:
Can paste the code does not ...... do not know what else to ask you specifically. . . .
Reply:
I do not know what you mean by "iphone timer" is
Reply:
Been resolved, thank you ah