Literature Reference: 昶，日长也。——《说文解字》 'Chang' means the day is long. Source from 'Shuowen Jiezi'.
昶: The days are long and serene, evoking a sense of comfort and smooth sailing. In names, it often signifies ease and favorable winds in one's journey.
Meaning: Chang signifies long days, symbolizing light, hope, and eternity.