User blog comment:Tyler32 23/Im not getting energy or cat tickets/@comment-24659969-20151117103013

Why eight days? With energy regen 1/min (faster if you get treasure from ITF) and normal max energy including all treasures and maxed base upgrade, it takes you only a day to complete full. Also the limit for you time-forward / backward is 2 days minus few hours depending on your timezone, but the best is 48 hours forward if your phone set at GMT-12 (but only allowed 24 hours backward) or backward at GMT+12 timezone (with only allowed 24 hours forward).

More than that, the game will detects time change and penalty you for that by not allowing you to gain any tickets or bonuses (with some exceptions) for as much time passed forward.

There solution to fix up the problem are been asked a lot of times and solved over threads in BC reddit, search there.