UTCoffsetsna

UTCoffsetsna is a data resource that catalogs the Coordinated Universal Time (UTC) offsets used across North America. It focuses on enumerating standard time offsets and daylight saving time adjustments for locations within the North American georegion. Each entry typically includes location name, country or territory, a canonical time zone identifier (such as America/New_York), the standard offset from UTC, the daylight saving offset if applicable, whether DST is currently observed, and notes on any local exceptions or irregularities.

Scope and coverage: The dataset aims to cover major sovereign states and dependent territories within North America, including the United States, Canada, Mexico, and several Caribbean and Central American locations that observe North American time conventions. Newfoundland and the Alaska/Hawaii–Aleutian zones have distinct offsets and DST rules captured separately. The resource distinguishes regular, non-DST periods from regions with irregular or no daylight saving practices.

Data sources and maintenance: UTCoffsetsna relies on established time-keeping standards, principally the IANA time zone database, government announcements, and validated public data. The project maintains versioned releases and timestamped updates to reflect changes in law or daylight saving rules. Contributors may add or revise entries to reflect locale-specific developments while aiming for transparency about data provenance.

Usage and applications: The information is intended for software developers, systems integrators, and researchers who need reliable, locale-aware time calculations, scheduling, logging, or analytics across North America. It serves as a reference or supplement to broader time zone systems and is designed to be interoperable with common date-time libraries.

Limitations and considerations: Time zone rules are subject to change; offsets and DST practices may be altered by legislation or regional decisions. The dataset provides guidance but should be periodically synchronized with primary sources for critical applications.