Congrats on publishing your game!
I really enjoyed the idea of day/night cycle system where I had to finish the game before it becomes night. That was brilliant.
The graphics were also nice, good job.
Possible improvements would be the ability to skip the intro or perhaps make it shorter as it felt like forever to start the actual game.
Another improvement is to have maybe obstacles along the way to make it harder to reach the balloon.
Overall, short but fun game. Good job!