I'm not asking how to send twitter posts, I already have that functioning.
My reading comprehension skills were lacking. My apologies.
As I made clear in my primary post the thing I wanted input on is how to delay time between posts while maintaining a constantly cycling loop function.
You need to look at the blink with delay example, to see how to use millis() and a previous time (the last time you did something, whatever that something is) and an interval (how often that something should be done), to see if it's time to do it again.