JavaScript Date Rotation

I need a JavaScript function that will rotate a set of known dates based on a custom pattern. The dates are in the format MM/DD/YYYY. The rotation should occur based on the dates of current and upcoming meetings, which occur approximately monthly.

Ideal skills and experience for the job:
- Proficient in JavaScript
- Experienced in working with date manipulations
- Able to implement custom patterns into code
- Understanding of meeting schedules and their implications on date rotations