After Xu Qing studied the life lantern formed after the purple crystal light fused with his bloodline, he discovered that its ability was indeed related to time but it wasn't absolute.
For example, the physical defense effect of the large black umbrella didn't disappear because it was dissolved. It still existed.
Moreover, it was even stronger than before.
Also, the time difference between the Sundial and the time outside was about 14 hours.
Xu Qing didn't know what secrets this time difference contained, and didn't have an answer even after thinking about it for a while.
In the span of seven days, he attempted to accelerate the sundial, but the lantern fire transformed with the nascent soul seemed to be pulled, making it difficult to achieve.
Trying to make it reverse was also the same.
Trying to cause it to stop also gave the same result.