24StundenFenstern

24StundenFenstern is a hypothetical framework and data standard for encoding the 24-hour availability windows of services and facilities. The name fuses the German terms for “24 hours” and “windows,” signaling its goal of describing time intervals during which a resource is accessible. The project envisions a platform-agnostic specification that can be adopted by public agencies, private companies, and software developers to make service hours machine-readable and interoperable.

At its core, 24StundenFenstern defines a time-window data model that captures when a resource is available, including start and end times, time zones, recurrence rules, and a status field (open, closed, limited). It supports localization, daylight saving considerations, and changes over time, such as holidays or outages. The specification outlines a JSON-based schema and API design for querying, filtering, and subscribing to updates, with optional calendar interoperability via iCal or similar formats.

Common use cases include municipal services that operate at varied hours, transit hubs and facilities that publish real-time availability, retail and hospitality to show current opening status, and digital services that route requests based on operator availability.

Governance and adoption are described as open and modular: community-driven development, versioning, and compatibility guarantees, with clear guidance on data provenance and privacy. Implementers are encouraged to publish resource identifiers, timestamps for last updates, and audit trails.

Currently, 24StundenFenstern remains a proposal or experimental standard with limited real-world deployment. Proponents argue it could improve planning, accessibility, and coordination across sectors, while critics note potential maintenance overhead and the need to manage data quality and privacy considerations.