Dive into the tz Database: Crafting Your Own Time Zone
2025-09-11
While working with Ruby, the author encountered a timezone issue, leading to the discovery of the tz database. This article provides a clear explanation of the tz database, including its core components: the zic compiler, the zdump tool, and timezone source files. The author demonstrates how to customize timezone rules by creating a fictional timezone, Hi_No_Kuni/Konoha, within an Alpine Docker image. The process is illustrated with practical examples, verifying the results. This article is suitable for developers and provides insight into the complexity and standardization behind time zones.
Development
tz database