If it did, you would be at risk of circular logic loop with out putting in place an RBE node.i.e. you manually update your device, MQTT sends a notice to NORA, NORA sends an update to MQTT which tells your device to change, MQTT then sends an update to NORA..... I started building the loop blocker until I realized it didn't do it so was safe.
I would suggest just sending your on command in parallel to your update to NORA. Think of NORA more as a control dashboard that you are updating status to / receiving commands from. Here's a quick mockup of what I'm suggesting:
Or if you want it more robust (I believe you were using MQTT) and since you can only have one NORA node per Google Home device, I would do like I'm doing and just setup stand alone status / control flows and do your on timer independent of NORA. Like this (obvious with change nodes if needed if you are doing full object based control vs. just #'s):
Then when your timer tells your light to turn on, it will notify NORA/Google Home that it's on. Then if you send an overriding voice command then it will change the light to that output.
Let me know if that makes sense.