I have a scheduling optimization problem where available times for machines are between 8:00 AM and 5:00 PM Monday through Friday. I need to write union of following constraints as available time (in minutes) using OPL language but not sure if logical operator (||) does the job for me . Any guide is really appreciated.

0<=t<=540

1440<=t<=1980

2880<=t<=3420

4320<=t<=4860

5760<=t<=6300