Issue with Start and end times on jobs in scheduling

I have an issue with the start and end times showing on the jobs in the scheduling boards.

I only have one shift 6-3 pm
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and I have it set in the site maintenance with a backward scheduling start of 6 am

none of these seem to be impacting what comes out. My production calendar is for 5 days/ 8 hour per day

What am I missing because my start and end times are reflecting round the clock

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What does your production calendar show?

The scheduling engine doesn’t care about shifts, it uses the calendar.

If that is your only calendar, all of your resources are available Monday through Friday, 12AM to 7AM.