Game progresses on title screen
If you are on the title screen, time progresses in all savefiles without offline progress enabled, including challenges. Trees, careers, and 1.5X EXP/Coin expire, adventure energy is regained, pet fullness decreases, LOLMarket demand manipulation becomes available again, and you gain Attendence event tokens. BA items presumably also expire, but I haven't idled on the title screen long enough to tell.
crunkpetrol | 75,605 / 1,173,724,373,294 | [d2]–44 | F0 | v1,656 | WIN 11,9,900,170 | Mon Jan 6 14:10:24 GMT-0500 2014