Automating Scheduled Publishing on Zenn: The GitHub Actions Workflow That Solved the Timezone Problem

This workflow enables content creators to batch-write articles and automatically release them on a schedule without manual intervention, addressing a critical gap in Zenn's native automation capabilities. The solution reveals a crucial misconception: GitHub Actions' role is not to deploy to Zenn, but to trigger Zenn's own deployment pipeline through strategic file updates. The timezone handling approach—reconciling UTC-based CI/CD pipelines with JST-based publishing times—provides a reusable pattern for any system coordinating events across multiple timezones.