《明史·志·卷七》
况且《授时历》以元至元辛巳年为历元即计时起点，至洪武甲子年已累计一百零四年，年代久速，日数盈余，渐渐地与天的运行度数有误差，应该修改。
况《授时》以元辛巳为历元，至洪武甲子积一百四年，年远数盈，渐差天度，合修改。
Moreover, the "Shoushi Calendar" takes Yuan Zhiyuan Xinsi year as the starting point of time, and has accumulated 104 years up to Hongwu Jiazi year, which is a long time and has a surplus number of days. Gradually, there is an error with the degree of day in the universe, which should be changed.