‘Zhēng shuò’ literally combines ‘zhēng’ (the first month of the lunar year) and ‘shuò’ (the first day of a lunar month, when the moon is not visible). Together, it refers specifically to the first day of the first lunar month—the traditional Chinese New Year’s Day—and symbolizes the beginning of the annual cycle. Historically, it carried deep political significance: declaring one’s own zhēng shuò meant asserting legitimacy as the rightful ruling dynasty, since calendar authority reflected heavenly mandate.

In classical and historical texts, ‘zhēng shuò’ appears in discussions of dynastic succession, ritual observance, and imperial edicts. While rarely used in modern daily speech, it remains important in academic, literary, and ceremonial contexts—especially when referencing traditional timekeeping, historical legitimacy, or Confucian statecraft. It evokes reverence for cyclical time and political orthodoxy, not just chronology.