In 744, Chinese inventors further developed the water clock, a significant advancement in timekeeping technology. This innovation was particularly important in urban centers like Chang'an, where precise timekeeping was essential for both daily life and ceremonial functions. The water clock represented a blend of scientific inquiry and practical application, reflecting the sophisticated understanding of hydraulics in ancient China.

The advancements in timekeeping through the water clock influenced the structure and rhythm of poetry, as poets began to consider the passage of time in their works. The ability to measure time more accurately allowed poets to explore themes of transience and permanence, enriching the emotional depth of their poetry. This technological development contributed to a broader cultural appreciation for the arts and literature in Tang China.