The difference is part of the clock, not a playback delay
The New Zealand Government states that the Chatham Islands are 45 minutes ahead of New Zealand standard time. That civil-time difference is unrelated to the small delay often seen between a broadcast and an internet stream. One is a clock rule; the other concerns how the video reaches the screen.
A whole-hour programme-guide control cannot describe a 45-minute location difference exactly. If a guide offers an IANA zone or city selector, use Pacific/Chatham rather than an Auckland setting with a guessed correction.
See the local dates as well as the minutes
The two sample UTC instants below become local morning times on the following date. Keeping the date visible is as important as preserving the 45-minute difference.
| UTC example | Pacific/Auckland | Pacific/Chatham |
|---|---|---|
| 2026-11-03 20:00:00 UTC | 2026-11-04 09:00 (UTC+13:00) | 2026-11-04 09:45 (UTC+13:45) |
| 2027-07-15 20:00:00 UTC | 2027-07-16 08:00 (UTC+12:00) | 2027-07-16 08:45 (UTC+12:45) |
A programme schedule and a conversion answer different questions
The broadcaster’s current programme guide says when an edition is scheduled. A time-zone conversion says when that instant occurs in another location. If a service runs a delayed or regional edition, copying the national programme name is not enough to establish that its start is simultaneous.
For a household following New Zealand programmes abroad, retain the source date and edition in the reminder. A Saturday-night announcement can appear on a different calendar day elsewhere in the Pacific.
Review saved settings after a device change
A replacement television or streaming box may start with a default city that is convenient but not local. Confirm its automatic clock and named location before adjusting an individual guide. Otherwise several correctly supplied programme lists can all appear wrong in the same way.
Questions about this guide
Is the Chatham difference a 45-minute streaming delay?
No. It is a civil-time difference between locations, separate from video delivery latency.
Should the device use Auckland with an extra hour?
Use Pacific/Chatham where supported. A rounded hour does not preserve the government-defined 45-minute difference.