All, I worked with Michael on my issue over the last few days, and wanted to post root cause, in case anyone else runs into this issue.
It seems my timezone was wiped out in ST, apparently due to an update to the hub. I noticed that the timezone field was blank in my location, so I reset it in the ST app on my phone. Once I did that, it correctly listed my timezone.
Once the timezone was fixed, the voice came back and it accurately spoke the time, date, etc.