Easter happens on the 1st day of a New Week!
The symbolism of the resurrection being on that beginning of a new week should not be lost when you read and reflect on Easter.
Creation happened in a week. And on the final day of the week God rested. His work of creation started and ended in a week.
Jesus resurrection happened on the first day of the week. One way of understanding what is happening is to see a new week of creation happening. Jesus through his death and resurrection has started a new creation!
This new creation is based upon life. The New Testament authors keep coming back to the idea that death came through Adam, and life comes through Jesus. That the old creation is characterized by Adam's sin, but the new creation is characterized by Jesus resurrection!
Happy Easter! HE IS RISEN!!