Until then, Maker Time will have to live in peaceful coexistence with the Gregorian Calendar.
Edit:
I think it's important to point out that not all cultures share the same sense of time. While my ideas here are heretical in America, or Germany, the spirit of what I am getting at would be very familiar to a Spaniard, an Italian or a Jamaican.
Here is an interesting article on it:
http://www.businessinsider.com/how-different-cultures-unders...