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Weird time zones

Not every zone is a full hour, and in 1995 an entire country skipped a day off the calendar. The table gathers the strangest time zone cases in the world.

PlaceZoneThe quirk
NepalUTC+5:45The only country with a 45 minute offset as its national standard, aligned to Kathmandu solar noon.
IndiaUTC+5:30A single zone for a country spanning two geographic time zones; the 30 minute offset splits the difference.
Chatham IslandsUTC+12:45New Zealand territory with the rare 45 minute offset, 45 minutes ahead of the mainland.
KiribatiUTC+14The most advanced time zone on Earth; in 1995 the country moved the Date Line and simply skipped December 31.
ChinaUTC+8One official zone for a territory that crosses five geographic time zones, from the east to Xinjiang.
Eucla (Australia)UTC+8:45A tiny settlement in the desert keeps an informal 45 minute offset, one of the few in the world.
MoroccoUTC+1Keeps summer time all year, yet turns the clock back 1 hour during Ramadan and forward again afterwards.
IranUTC+3:30A 30 minute offset tied to the Persian solar calendar and the national time zone.
AfghanistanUTC+4:30Borders countries at UTC+5 and +5:30 yet keeps its own 30 minute offset.
MyanmarUTC+6:30A 30 minute offset inherited from the colonial era and kept by national convention.
Newfoundland (Canada)UTC-3:30The Canadian island keeps its own half hour zone, a legacy of local solar time.
Marquesas IslandsUTC-9:30French Polynesian territory with a rare 30 minute offset from Tahiti.
Lord Howe IslandUTC+10:30Uses a daylight saving shift of just 30 minutes, the smallest seasonal adjustment in the world.

Why 30 and 45 minute zones exist, and where the Date Line runs

The idea that the world has 24 neat one hour zones is only half the story. Several places use offsets of 30 or 45 minutes, almost always for one of two reasons. The first is solar: before standardization, every city set its clock by local noon, and countries like Nepal, Iran and India fixed their zone at the point that best reflects the real position of the Sun over the capital, even if that landed in the middle of a neighboring zone. The second is political: keeping the whole country on a single time simplifies administration, even when the territory is far too wide to fit one zone, as in China, which runs entirely on UTC+8.

The International Date Line, the imaginary meridian where the calendar flips from one day to the next, is not a straight line: it zigzags across the Pacific to avoid slicing countries in half. The most spectacular case is Kiribati, an archipelago spread on both sides of the line. In 1995, so the whole country could live on the same day, the government pushed the line east, and the result was that December 31, 1994 simply never existed in part of the territory: the clocks jumped straight to January 1. Today Kiribati holds UTC+14, the zone where the day begins earliest on the planet. Source: the IANA time zone database (tz database), maintained in the public domain.

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