When you need coins/hearts but it takes 24 hour to get coins/heats. Just do 6 easy steps.

1 CLICK YOUR HOME BUTTON 2 TIMES.
2 CLICK YOUR SETTINGS.
3 GO TO GENERAL.
4 CLICK DATE AND TIME.
5 CLICK SET DATE AND TIME.
6 GO UP 1 DAY.

Then just go back to the game and it will give you your coins/heats.