Can your employer change your scheduled hours without notice?

Question Details:

If a person is hired as an hourly supervisor (Monday through Friday 7 a. m. to 4 p.m.) can the company suddenly change your hours to whenever they want you there (employed for 16 years)? What about the associates who go to college after work or weekends? What about the family that has only one car? What about the associates who have a second job? Can an employer legally change your hours and you have to put your life on hold and be available to them 24/7? Important Notice