When combined, 公历 (gōnglì) literally translates to the “public calendar” or “official calendar,” which perfectly captures its role as the standardized system used for civil and international purposes in China.
The most important cultural aspect of 公历 is its dual existence with the 农历 (nónglì), the traditional lunisolar calendar. Modern Chinese life runs on two parallel time systems, and understanding this duality is key.
Comparison to Western Culture: In the West, we operate almost exclusively on the Gregorian calendar. While other religious or cultural calendars exist (like the Hebrew or Islamic calendars), they don't influence the daily life of the general population. In China, however, it's completely normal for everyone to be aware of both calendar systems. Your phone's calendar app will display both. When someone mentions a date, especially around a holiday, it's sometimes necessary to clarify: “是公历还是农历?” (Shì gōnglì háishì nónglì? - “Is that the Gregorian calendar or the lunar calendar?”). This constant interplay between the modern/global and the traditional/cultural is a defining feature of contemporary China.