Does your PV system output instantly recover after an outage?

Question for you with PV installs (regular or micro inverter):

I noticed a youtube video where the homeowner closed the "disconnect/cutoff" for his home system, and it took almost 60 seconds for any effect to be noticeable on the meter. Once the inverters woke-up, the change in meter rotation from consuming to producing was only 2 seconds.

I'm wondering if all PV systems need time to "boot up" following any outage, and if this applies to even short blinks during wind storms?

Thanks for those pointers. The UL1741 and IEEE1547 standards docs were exactly what I was looking for.
Once again the contributors here have been a great resource.

I've learned that inverters will need to see between 3 to 5 minutes of continuous high quality AC power from the Utility before they sync on and begin outputing power.
Any significant disturbance of Voltage or Frequency can cause an inverter to come offline or stay offline.

Since voltage spikes, dips and sags are what I see often, these are the parameters which interested me most:
The inverter will switch offline when the Utility voltage deviates below 88% or above 110% of nominal for greater than 2 seconds and 1 sec respectively.
The inverter will switch offline when the Utility voltage deviates below 50% or above 120% of nominal for greater than 0.16 seconds.

Now I need to find out what is considered "nominal" voltage.
Is it 110v that my grandfather remembers?
Is it 115v that my dad always called it?
Is it 120v we see on most of the equipment rating labels today?
Or is it the 122v I usually measure on my duplex outlets at home?