Is there any better way to get tomorrow's date instead of use an offset from today? 
Even if we choose to use the offset to get tomorrow's date, we shouldn't use this confusing and error-prone hard-coded number of 86450000 here. And we are already fixing a bug about it now. A better way is just explicitly showing how this number is calculated. For example, instead of using 3600 to represent how many seconds an hour has, we could do it like:
int secondsInHour = 60*60;