Delta flight change


#1

I had booked a Delta flight to Hawaii , the timings were good and thus booked a more expensive one compared to other airlines. subsequently Delta changed the timings to an unconventional 5 am departure instead of the 8 am . What are my rights as a passenger , can an airline dangle a convenient time and then change it ? I had to leave a day earlier and had to make my own hotel arrangements as had infants with me