Jet Airways — change flight timing

I had a bad experience with jet airways. I have booked a flight for 4th nov 2016 02:30 am to kolkata. But jet airways rescheduled the flight to 3 nov 9:45 in the evening. I have an important meeting to attend on 3rd nov. How can i board a flight on 3rd nov 9:45 pm and moreover i have a connecting train to my home town from kolkata on 4th nov. If i board the flight on 3rd nov i will be missing my meeting and will be sitting in airport for 7 long hours unnecessarily.
I really thought passenger concern is the most important thing., but i was wrong these airlines are rescheduling the flights with their wish and providing some reasons like in my case operational issues.