Boarding in Canada on July 25, arriving in Germany July 26—Visa starts July 26. Will I be denied boarding?

I have a technical visa question, I am flying from Canada to Germany. My German Schengen Visa is valid starting from July 26th.
Departure: July 25th at around 9:50PM (Local Canadian Time)
Arrival: July 26th 11 a.m ( Local German time)
Airline: Air Canada

Technically, when I land in Germany and present my passport at immigration, it will be July 26th and my visa will be valid. However, at the time of check-in and boarding in Canada, it will still be July 25th.

Will the airline (using TIMATIC) flag my visa as "not yet valid" because it is still the 25th at the departure airport ?
And Has anyone done this specific "overnight" flight before where your visa becomes active while you are in the air ?