Turn a Chatham Islands Time reading into Coordinated Universal Time. The panels show both clocks live, and the roller lets you line up any CHAST/CHADT time against its UTC equivalent.
Chatham Islands Time
Coordinated Universal Time
US Eastern Time
THE CLOCKS ABOVE ALWAYS SHOW THE LIVE CURRENT TIME. THE ROLLER BELOW IS A LOOKUP TOOL — ROTATING IT NEVER CHANGES THEM.
UTC reference date: Sat, 03 Oct 2026. The roller wraps within this date.
Offsets below apply to the selected time.
Sun, 04 Oct 2026
Sat, 03 Oct 2026
Sat, 03 Oct 2026
CHAST/CHADT is 13 hours 45 minutes ahead of UTC
ET is 4 hours behind UTC
New Zealand (Chatham) is 17 hours 45 minutes ahead of United States (Eastern)
This hourly table is for today in UTC. Use the converter above to choose a different date or an exact minute.
| CHAST/CHADT | UTC | Local date |
|---|---|---|
| 13:45 | 00:00 | Sat, 03 Oct 2026Same day |
| 14:45 | 01:00 | Sat, 03 Oct 2026Same day |
| 15:45 | 02:00 | Sat, 03 Oct 2026Same day |
| 16:45 | 03:00 | Sat, 03 Oct 2026Same day |
| 17:45 | 04:00 | Sat, 03 Oct 2026Same day |
| 18:45 | 05:00 | Sat, 03 Oct 2026Same day |
| 19:45 | 06:00 | Sat, 03 Oct 2026Same day |
| 20:45 | 07:00 | Sat, 03 Oct 2026Same day |
| 21:45 | 08:00 | Sat, 03 Oct 2026Same day |
| 22:45 | 09:00 | Sat, 03 Oct 2026Same day |
| 23:45 | 10:00 | Sat, 03 Oct 2026Same day |
| 00:45 | 11:00 | Sun, 04 Oct 2026Previous day in UTC |
| 01:45 | 12:00 | Sun, 04 Oct 2026Previous day in UTC |
| 02:45 | 13:00 | Sun, 04 Oct 2026Previous day in UTC |
| 03:45 | 14:00 | Sun, 04 Oct 2026Previous day in UTC |
| 04:45 | 15:00 | Sun, 04 Oct 2026Previous day in UTC |
| 05:45 | 16:00 | Sun, 04 Oct 2026Previous day in UTC |
| 06:45 | 17:00 | Sun, 04 Oct 2026Previous day in UTC |
| 07:45 | 18:00 | Sun, 04 Oct 2026Previous day in UTC |
| 08:45 | 19:00 | Sun, 04 Oct 2026Previous day in UTC |
| 09:45 | 20:00 | Sun, 04 Oct 2026Previous day in UTC |
| 10:45 | 21:00 | Sun, 04 Oct 2026Previous day in UTC |
| 11:45 | 22:00 | Sun, 04 Oct 2026Previous day in UTC |
| 12:45 | 23:00 | Sun, 04 Oct 2026Previous day in UTC |
Chatham Islands Time is the local clock in the Chatham Islands. Converting it to UTC removes the local offset so the time can be shared with anyone in the world without ambiguity — which is exactly why UTC is used for servers, aviation and international scheduling.
The Chatham Islands are 45 minutes ahead of mainland New Zealand. Late UTC conversions often land on the following local date.
Subtract the current offset shown in the offset panel from the local CHAST/CHADT time. If the result goes below 00:00, UTC is still on the previous date. Use the roller to read the pairing directly instead of doing the arithmetic.
Because CHAST/CHADT observes daylight saving time, the gap to UTC is not fixed — every clock and table on this page is calculated live from the Pacific/Chatham IANA database, and the selected result uses the offset for its selected UTC instant.
Early-morning or late-night local times frequently sit on a different UTC date. The converter labels every selection as SAME DAY, NEXT DAY or PREVIOUS DAY so a deadline written in UTC is never off by 24 hours.
The Chatham Islands use UTC +12:45 in standard time and UTC +13:45 during daylight saving time.