Developer platform

Deterministic date and time tools for developers

Use the browser JSON playground today. A versioned hosted API will launch only after source caching, monitoring and rate limits are ready.

Time-zone conversion

Planned endpoint using versioned IANA data with explicit source and database revision.

DST transitions

Planned transition windows with unambiguous UTC instants and local offset changes.

Business days

Planned weekend and observed-holiday policies with calculation assumptions returned.

Holidays

Planned country and region results with provenance, coverage and last-review fields.

Free

1,000 requests/month

Starter

25,000 planned

Pro

150,000 planned

Hosted API is not active yet.

No keys or payments are being accepted. It requires persistent key storage, metering, abuse protection and billing.