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Historical clock change

Auckland TV guide clock change on 06 April 2025

The local time 02:30 on 06 April 2025 is repeated in Pacific/Auckland. Use an explicit offset when mapping the affected programme.

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The local time 02:30 on 06 April 2025 is repeated in Pacific/Auckland. Use an explicit offset when mapping the affected programme.

What the time zone rules produce

Historical IANA example for Pacific/Auckland with a 60-minute wall-clock change.
MomentLocal schedule timeUTC
One second before the change2025-04-06 02:59:59 NZDT2025-04-05 13:59:59 UTC
At the change2025-04-06 02:00:00 NZST2025-04-05 14:00:00 UTC

The same wall time refers to two instants

Both examples show 02:30 in Pacific/Auckland on the named date.
Explicit XMLTV-style startCorresponding UTC
20250406023000 +13002025-04-05 13:30:00 UTC
20250406023000 +12002025-04-05 14:30:00 UTC

If the EPG shows the wrong slot

Keep the original offset or UTC instant to determine which showing the source means. A global offset would move unrelated programmes.

Sources and further reading