Some conferences have an early and a late fee. On the personal data page you have the option to change the date text above the p- events to a text.
Go to 1. Reg.items > 2. item settings > 3.extra settings.
At extra settings you will find the option to define your own text.
For example you can insert by text period 1: early fee and by text period 2: late fee
When you click on save settings, the date changed to the text: