Support Global Trading Hours for SPX (Index Options)

[AlexCatarino]

Expected Behavior

Support Global Trading Hours (see Extended Global Trading Hours) for SPX.

Actual Behavior

Only regular hours are supported.

Potential Solution

N/A

Checklist

• [x] I have completely filled out this template
• [x] I have confirmed that this issue exists on the current master branch
• [x] I have confirmed that this is not a duplicate issue by searching issues