Time zones

Sun

GMT
Longitude
Mean solar

Options

Ordinary time zones

OffsetN Winter/S Summer (January)N Summer/S Winter (July)Time
-12:00Howland and Baker IslandsHowland and Baker Islands
-11:00American SamoaAmerican Samoa
-10:00Hawaii, AleutianHawaii
-9:30Marquesas IslandsMarquesas Islands
-9:00Alaska StandardAleutian Islands
-8:00Pacific StandardAlaska Daylight
-7:00Mountain Standard, ArizonaPacific Daylight, Arizona
-6:00Central StandardMountain Daylight
-5:00Eastern StandardCentral Daylight
-4:30VenezuelaVenezuela
-4:00Atlantic Standard, CarribeanEastern Daylight
-3:30Newfoundland Standard
-3:00West GreenlandAtlantic Daylight
-2:30Newfoundland Standard
-2:00Brazil, Uraguay(various)
-1:00E Greenland, Cape VerdeCape Verde
±0:00UTC, W Europe, W AfricaUTC, W Africa
+1:00Central Europe, West Africa TimeWest Europe, West Africa Time
+2:00Eastern Europe, Central AfricaCentral Europe, Central Africa
+3:00East Africa, ArabiaEastern Europe, East Africa, Arabia
+3:30Iran
+4:00Moscow, W Asia, AzerbaijanMoscow, W Asia
+4:30AfghanistanAfghanistan, Iran
+5:00Central AsiaCentral Asia, Azerbaijan
+5:30India, Sri LankaIndia, Sri Lanka
+5:45NepalNepal
+6:00Yekaterinburg (Russia), Kazakhstan, Kyrgyzstan, Tibet, Bhutan, BangladeshYekaterinburg (Russia), Kazakhstan, Kyrgyzstan, Tibet, Bhutan, Bangladesh
+6:30Myanmar, Cocos IslandsMyanmar, Cocos Islands
+7:00Omsk Time (Russia), SE AsiaOmsk Time (Russia), SE Asia
+8:00Krasnoyarsk Time, China, SE Asia, Western AustraliaKrasnoyarsk Time, China, SE Asia, Western Australia
+8:45Central Western Standard Time (Australia)Central Western Standard Time (Australia)
+9:00Irkutsk Time, Japan, Korea, Indonesia Eastern TimeIrkutsk Time, Japan, Korea, Indonesia Eastern Time
+9:30Australia Central Standard TimeAustralia Central Standard Time
+10:00Yakutsk Time, Australia Eastern Standard TimeYakutsk Time, Australia Eastern Standard Time
+10:30Australia Central Daylight TimeLord Howe Island
+11:00Vladivostok Time, various islands, Australia Eastern Daylight TimeVladivostok Time, various islands
+11:30Norfolk IslandNorfolk Island
+12:00Magadan Time, various islandsMagadan Time, various islands, Fiji, New Zealand Standard
+12:45Catham Islands
+13:00Phoenix Islands, Tokelau, Tonga, Fiji, New Zealand Daylight, South PolePhoenix Islands, Tokelau, Tonga, Samoa
+13:45Catham Islands
+14:00Line Islands, SamoaLine Islands

Source: The linked articles on Wikipedia. I make no guarantees about the accuracy of this information.