creating two loops?

Right now i have the main void loop() running down a counter in seconds and displaying it through a lcd. I also have a msg panning at the bottom. I want the message to pan at a higher speed without increasing the countdown. How can I loop at two diffferent delays?

These libraries will help you executing code at different intervals:

They both use the millis function to handle timing.

You can also just have two counters incrementing in the main loop and calls to different functions once they got over a certain value. Your 2 functions can then reset them to zero before returning to the main loop.