Time Zones in Canada with Legislated and Daylight Saving Boundaries

Six official time zones in Canada are mapped and regulated by provinces and territories. This record contains maps and data for legislated Standard Time and Daylight Saving Time boundaries, produced by the Canada Centre for Mapping and Earth Observation. Daylight Saving Time starts on the second Sunday in March and ends on the first Sunday in November, though some regions do not observe it.

Use Cases

• Configure time zone logic in software applications based on legislated boundaries.
• Analyze regional timekeeping policies based on Daylight Saving Time observance exceptions.
• Visualize temporal jurisdiction boundaries for cartographic or planning purposes.

Strengths

• Includes data for both legislated Standard Time and Daylight Saving Time boundaries.
• Produced by the authoritative Canada Centre for Mapping and Earth Observation (CCMEO).
• Boundary lines were created from information provided by the National Research Council, responsible for official time in Canada.

Limitations

• Description metadata is limited; actual data quality requires manual inspection after download.
• The announced changes to Pacific time effective March 2, 2026, are not reflected in this dataset.
• Column-level documentation is absent; field semantics must be inferred after download.

Provenance

Source

Natural Resources Canada | Ressources naturelles Canada

Collection Method

Time zone boundary lines were created from information provided by the National Research Council.

Freshness

Last updated 2026-06-19 21:52:19.947324; freshness should be verified.

Geography

Canada