UTC offsets: the full list
From UTC−12 to UTC+14 — twenty-seven hours of range across a twenty-four hour day, because several countries chose their side of the date line.
The short answer
Offsets run from UTC−12 to UTC+14 — a 26-hour spread across a 24-hour day, because some Pacific nations chose offsets beyond +12 to share a calendar date with their trading partners.
Most are whole hours. A handful are half-hours, and three are quarter-hours.
Whole-hour offsets
| Offset | Where |
|---|---|
| UTC−11 | American Samoa, Niue |
| UTC−10 | Hawaii, Cook Islands |
| UTC−8 | US Pacific (winter) |
| UTC−6 | US Central (winter), Costa Rica |
| UTC−5 | US Eastern (winter), Colombia, Peru |
| UTC−3 | Argentina, Brazil (São Paulo), Uruguay |
| UTC+0 | UK & Ireland (winter), Iceland, Ghana, Senegal |
| UTC+1 | Central Europe (winter), Nigeria, Algeria |
| UTC+2 | Eastern Europe (winter), South Africa, Egypt |
| UTC+3 | Moscow, Saudi Arabia, Kenya, Turkey |
| UTC+4 | UAE, Georgia, Mauritius |
| UTC+5 | Pakistan, Uzbekistan |
| UTC+6 | Bangladesh, Kazakhstan (east) |
| UTC+7 | Thailand, Vietnam, Indonesia (west) |
| UTC+8 | China, Singapore, Malaysia, Philippines, Western Australia |
| UTC+9 | Japan, Korea, Indonesia (east) |
| UTC+10 | Queensland, Papua New Guinea |
| UTC+12 | New Zealand (winter), Fiji, Kamchatka |
| UTC+13 | Samoa, Tonga |
| UTC+14 | Kiribati (Line Islands) |
The half-hour offsets
| Offset | Where |
|---|---|
| UTC−3:30 | Newfoundland |
| UTC+3:30 | Iran |
| UTC+4:30 | Afghanistan |
| UTC+5:30 | India, Sri Lanka |
| UTC+6:30 | Myanmar, Cocos Islands |
| UTC+9:30 | Northern Territory, South Australia |
| UTC+10:30 | Lord Howe Island (summer) |
The quarter-hour offsets
| Offset | Where |
|---|---|
| UTC+5:45 | Nepal |
| UTC+8:45 | Eucla, Western Australia |
| UTC+12:45 / +13:45 | Chatham Islands, New Zealand |
These are the ones that break software. Any system doing whole-hour arithmetic is wrong for India's 1.4 billion people before it gets anywhere near Nepal.
Why the range exceeds 24 hours
If everyone used offsets between −12 and +12 the span would be exactly 24 hours.
Kiribati changed that in 1995. Its territory straddled the date line, so the country was permanently split across two calendar dates — administratively absurd. It moved its eastern islands to the west side of the line, creating UTC+13 and UTC+14.
Samoa did something similar in 2011, skipping 30 December entirely to move from UTC−11 to UTC+13, so it shared a working week with Australia and New Zealand rather than with the US.
The result is a 26-hour spread and, for part of every day, three different calendar dates in use simultaneously.
Offsets are not permanent
Countries change them. Samoa moved by a full day. Mexico abolished daylight saving in 2022. Several countries have shifted their standard offset outright.
An offset is a fact about a place at a moment, which is why the time zone database is keyed on cities and not on numbers.
Related: Half-hour and quarter-hour time zones · How many time zones are there?
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Figures on this page are computed from the IANA time zone database. Last generated 2026-08-18.