heinzel-clock: the World Clock

What time it is for everyone on the team — a first-party Heinzelmännchen plugin, and the smallest plugin-owned feature: Python declarations, globe, assets and tests live in this project.

hz system plugin add clock --confirm
hz setup clock                            # pick the team's time zones and the working hours in each
hz clock                                  # the team's local times; --json for agents
hz system config set clock.zones '[{ name = "Europe/Berlin", hours = [9, 18] }, "America/New_York"]'

Each zone is an IANA name, which gets working hours 9 to 18, or a table with its own hours. The same operation is the MCP tool clock (hz system serve mcp) and GET /clock (hz system serve api); the zones are checked by hz system doctor, and hz setup includes the World Clock's optional setup step.

The settings before per-zone hours (zones as names and one working_hours for all) are still read, and hz system doctor reports them as degraded. hz setup clock rewrites them in the new shape when they are in your user file; remove working_hours from a project hz.toml or HZ_CLOCK__WORKING_HOURS yourself.

Development and release commands: repository guide.

Migration provenance: heinzel, before the 0.9 plugin-boundary migration.

The fallback land outline is simplified Natural Earth land (public domain); representative zone points come from IANA's public-domain zone.tab. Bundled frontend dependency license notices are packaged alongside the built view.