Li Wei and Saint Xi experimented and discovered that the duration of the Hour Time Technique depended on the amount of Power of Time used to cast it.
When Li Wei cast the Hour Time Technique once, the residual Power of Time in Saint Xi's body could maintain the spell for an entire day.
In other words, Li Wei could cast the Hour Time Technique on Saint Xi once per day.
This allowed Saint Xi to grow and increase her strength at twenty times the normal rate.
This growth-induced increase in strength was all-encompassing.
It wasn't like absorbing Holy Light Crystals, which only increased her Holy Power.
A day later, Saint Xi told Li Wei she had finished absorbing the Holy Light Crystal.
The accelerated flow of time also sped up her absorption and digestion process.
From Saint Xi's perspective, twenty days had genuinely passed.
Yet, only one day had passed in the outside world.
