ChronoShield API

ChronoShield API is a REST service that validates, resolves, and converts datetime values across all IANA time zones, explicitly handling daylight‑saving‑time gaps, overlaps, and non‑standard offsets such as half‑hour or 45‑minute shifts. It offers four endpoints that tell callers whether a local time is valid, invalid, or ambiguous, and can produce a deterministic UTC instant based on configurable policies (earlier, later, or reject). The API also supports batch operations for up to one hundred datetimes per request, with per‑item error handling and sub‑50 ms 95th‑percentile latency.

The service is aimed at developers of applications where precise timing is critical, including scheduling and calendar tools, cron or workflow automation systems, and billing or payment platforms that operate across multiple regions. By exposing explicit error information for DST gaps and overlaps, it lets callers avoid silent time shifts that can cause missed meetings, duplicate jobs, or incorrect charges.

ChronoShield API is positioned as production‑ready infrastructure rather than a thin wrapper around existing libraries, providing a straightforward integration path for systems that need reliable, unambiguous time handling.