Events in Reminders & Calendar App On Lockscreen All the Time?

Hi guys,

I have a question regarding the stock iOS Reminders and Calendars app. I'd like to know if there is a tweak on Cydia to allow Notification Center to display Reminder and Calendar events that are not due today. For example, if I have to buy grocery a week from today and I put it in my Reminders app, it would not show up in my Notification Center until the day it's due ...

I find this very frustrating because for certain events, I'd like to be reminded a couple days ahead instead of on the same day so that I can have time to prepare...

Any help appreciated. Cheers!