Exact departure times on a Visa

Hi! I have an e visa for India with only five days left allowed per calendar year.

Hypothetical situation but the question is pertinent.

Considering my counting is correct and I would need to leave on Tuesday but my departure flight is on Wednesday morning at 12:50 AM , is the departure time from India Tuesday, when I pass through customs/immigration or the following Wednesday morning as the flight actually takes off?

Just wondering if anyone knows how the timeframe works.

Thanks!