WTD Question

Can someone tell me what is the minimum amount of hours you can work before you need to take a 15 min break, for instance, if I have to run in on a Saturday morning and I am only going to be working 1.5 hours do I have to show a 15 min break in that time.

No, 6 hours for WTD

As said there’s no break legally required for working time of less than 6 hours, the requirement for WTD breaks only kicks in when the total working time is more than 6 hours.