# Standards

> Browse 3 items tagged with Standards.

## Items

- [Time Tracking API Standards](https://timetrack.works/ja/items/time-tracking-api-standards) — Common API design patterns, data formats, and integration standards used by time tracking software to enable interoperability between time tracking tools, project management platforms, payroll systems, and accounting software.
- [OCPS 1.0 (Open Cron Pattern Specification)](https://timetrack.works/ja/items/ocps-10-open-cron-pattern-specification) — 2025 published formal specification addressing fragmentation in cron syntax across implementations, codifying the Vixie cron dialect and five-field pattern format as an open standard for scheduling automation.
- [LEDES Billing Format](https://timetrack.works/ja/items/ledes-billing-format) — Legal Electronic Data Exchange Standard for invoicing, a standardized electronic billing format required by many corporate legal departments and insurance companies, ensuring consistent time entry data structure for automated processing and cost management.

---

_Canonical page: https://timetrack.works/ja/tags/standards_