The step is too high from town lvl 13 to 14. At town level 13, I could go to the next day in a few minutes. Starting a new day at level 14, I forgot to look the price for next day, used wrongly my time shard, now I have to wait a week, to get enough money to go the the next day and I can't even build a new building. To top that, building cost are 500 ad while going to the next day is 850 ad money. So I have to wait at least 1 weeks before going to the next day, respec my time shard efficiently and than gather 1.35 ed money to get to the next day and have a building upgrade (so more or so 2 and a half more weeks. You sould definetely add something to restart your day.
You should add a reset your day option (lose all your progress, but restart the day, in case you have a really hard time getting enough money to go to the next day, and you messed up what you choose to get from time shards)
Suggestion : A written date for the end of the events. It could be applied only, say a week before the end of the event. But being able to know would be really nice.
For some reason, 1 third of the time, even if my mouse works perfectly for every single other thing... when doing a combo, the card slip before and goes alone, or for some reason another card is put in play without doing a combo.
On top of that, since you have to wait like 1h regain the lost energy, you end up thinking you have to be in phase with the moon to be able to have fun.