Historical clock change

Macquarie TV guide clock change on 06 April 2025

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

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

What the time zone rules produce

Historical IANA example for Antarctica/Macquarie with a 60-minute wall-clock change.
MomentLocal schedule timeUTC
One second before the change2025-04-06 02:59:59 AEDT2025-04-05 15:59:59 UTC
At the change2025-04-06 02:00:00 AEST2025-04-05 16:00:00 UTC

The same wall time refers to two instants

Both examples show 02:30 in Antarctica/Macquarie on the named date.
Explicit XMLTV-style startCorresponding UTC
20250406023000 +11002025-04-05 15:30:00 UTC
20250406023000 +10002025-04-05 16:30:00 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.

Other location records with this same transition include Antarctica/Macquarie, Australia/Hobart, Australia/Melbourne, Australia/Sydney. Confirm the intended location from your actual broadcaster.

Sources and further reading