Into how many time zones is the earth divided?

Answer 1

As of 28 Dec 2014, a total of 41 distinct time offsets from Coordinated Universal Time (UTC) are used around the world every year, 39 of which are in use at the same time for part of every year. The 41 time zones currently are referred to by the 175 names listed below. 141 of the names are for Standard Time, and 34 of them are for Daylight Saving Time (DST).

UTC-11 w/ no DST

• Niue Time (NUT)
• American Samoa Standard Time (SST)

UTC-10 w/ no DST

• Cook Island Time (CKT)
• Hawaii-Aleutian Standard Time (HAST)
• Tahiti Time (TAHT)

UTC-10/UTC-9

• Hawaii-Aleutian Standard Time / Hawaii-Aleutian Daylight Saving Time (HAST/HADT)

UTC-9:30 w/ no DST

• Marquesas Time (MART)

UTC-9 w/ no DST

• Gambier Time (GAMT)

UTC-9/UTC-8

• Alaska Standard Time / Alaska Daylight Saving Time (AKST/AKDT)

UTC-8 w/ no DST

• Pacific Standard Time (PST)
• Pitcairn Standard Time (PST)

UTC-8/UTC-7

• Pacific Standard Time / Pacific Daylight Saving Time (PST/PDT)

UTC-7 w/ no DST

• Mountain Standard Time (MST)

UTC-7/UTC-6

• Mountain Standard Time / Mountain Daylight Saving Time (MST/MDT)

UTC-6 w/ no DST

• Central Standard Time (CST)
• Galapagos Time (GALT)

UTC-6/UTC-5

• Central Standard Time / Central Daylight Saving Time (CST/CDT)
• Easter Island Time / Easter Island Summer Time (EAST/EASST)

UTC-5 w/ no DST

• Acre Time (ACT)
• Colombia Time (COT)
• Eastern Standard Time (EST)
• Ecuador Time (ECT)
• Peru Time (PET)

UTC-5/UTC-4

• Cuba Standard Time / Cuba Daylight Saving Time (CUST/CUDT)
• Eastern Standard Time / Eastern Daylight Saving Time (EST/EDT)

UTC-4:30 w/ no DST

• Venezuelan Standard Time (VET)

UTC-4 w/ no DST

• Amazon Time (ANT)
• Atlantic Standard Time (AST)
• Bolivia Time (BOT)
• Guyana Time (GYT)

UTC-4/UTC-3

• Amazon Time / Amazon Summer Time (ANT/ANST)
• Atlantic Standard Time / Atlantic Daylight Saving Time (AST/ADT)
• Chile Time / Chile Summer Time (CLT/CLST)
• Paraguay Time / Paraguay Summer Time (PYT/PYST)

UTC-3:30/UTC-2:30

• Newfoundland Standard Time / Newfoundland Daylight Saving Time (NST/NDT)

UTC-3 w/ no DST

• Argentina Time (ART)
• Brasilia Time (BRT)
• Falkland Islands Summer Time (FKST)
• French Guiana Time (GFT)
• Rothera Time (ROTT)
• Suriname Time (SRT)

UTC-3/UTC-2

• Brasilia Time / Brasilia Summer Time (BRT/BRST)
• Pierre and Miquelon Standard Time / Pierre and Miquelon Daylight Saving Time (PMST/PMDT)
• Uruguay Time / Uruguay Summer Time (UYT/UYST)
• Western Greenland Time / Western Greenland Summer Time (WGT/WGST)

UTC-2 w/ no DST

• Fernando de Noronha Time (FNT)
• South Georgia Time (GST)

UTC-1 w/ no DST

• Cape Verde Time (CVT)

UTC-1/UTC-0

• Azores Time / Azores Summer Time (AZOT/AZOST)
• Eastern Greenland Time / Eastern Greenland Summer Time (EGT/EGST)

UTC+0 w/ no DST

• Greenwich Mean Time (GMT)

UTC+0/UTC+1

• Greenwich Mean Time / British Summer Time (GMT/BST)
• Greenwich Mean Time / Irish Summer Time (GMT/IEST)
• Western European Time / Western European Summer Time (WET/WEST)

UTC+1 w/ no DST

• Central European Time (CET)
• West Africa Time (WAT)

UTC+1/UTC+2

• Central European Time / Central European Summer Time (CET/CEST)
• West Africa Time / West Africa Summer Time (WAT/WAST)

UTC+2 w/ no DST

• Central Africa Time (CAT)
• Eastern European Time (EET)
• South Africa Standard Time (SAST)

UTC+2/UTC+3

• Eastern European Time / Eastern European Summer Time (EET/EEST)
• Israel Standard Time / Israel Daylight Saving Time (ILST/ILDT)

UTC+3 w/ no DST

• Arabia Standard Time (AAST)
• East Africa Time (EAT)
• Further-Eastern European Time (FET)
• Moscow Time (MSK)
• Syowa Time (SYOT)

UTC+3:30/UTC+4:30

• Iran Standard Time / Iran Daylight Saving Time (IRST/IRDT)

UTC+4 w/ no DST

• Armenia Time (AMT)
• Georgia Time (GET)
• Gulf Standard Time (GUST)
• Mauritius Time (MUT)
• Reunion Time (RET)
• Samara Time (SAMT)
• Seychelles Time (SCT)

UTC+4/UTC+5

• Azerbaijan Time / Azerbaijan Summer Time (AZT/AZST)

UTC+4:30 w/ no DST

• Afghanistan Time (AFT)

UTC+5 w/ no DST

• Aqtau Time (AQTT)
• Aqtobe Time (AQTT)
• French Southern Territories Time (TFT)
• Maldives Time (MVT)
• Mawson Time (MAWT)
• Oral Time (ORAT)
• Pakistan Time (PKT)
• Tajikistan Time (TJT)
• Turkmenistan Time (TMT)
• Uzbekistan Time (UZT)
• Yekaterinburg Time (YEKT)

UTC+5:30 w/ no DST

• India Time (INST)

UTC+5:45 w/ no DST

• Nepal Time (NPT)

UTC+6 w/ no DST

• Alma-Ata Time (ALMT)
• Bangladesh Standard Time (BdST)
• Bhutan Time (BTT)
• Indian Chagos Time (IOT)
• Kyrgyzstan Time (KGT)
• Novosibirsk Time (NOVT)
• Omsk Time (OMST)
• Qyzylorda Time (QYZT)
• Vostok Time (VOST)

UTC+6:30 w/ no DST

• Cocos Islands Time (CCT)
• Myanmar Time (MMT)

UTC+7 w/ no DST

• Christmas Island Time (CXT)
• Davis Time (DAVT)
• Hovd Time (HOVT)
• Indochina Time (ICT)
• Krasnoyarsk Time (KRAT)
• Western Indonesian Time (WIB)

UTC+8 w/ no DST

• Australian Western Standard Time (AWST)
• Brunei Darussalam Time (BNT)
• Central Indonesian Time (WITA)
• China Standard Time (CNST)
• Choibalsan Time (CHOT)
• Hong Kong Time (HKT)
• Irkutsk Time (IRKT)
• Malaysia Time (MYT)
• Philippine Time (PHT)
• Singapore Time (SGT)
• Ulaanbaatar Time (ULAT)

UTC+8:45 w/ no DST

• Australian Central Western Standard Time (ACWST)

UTC+9 w/ no DST

• Eastern Indonesian Time (WIT)
• Japan Standard Time (JST)
• Korea Standard Time (KST)
• Palau Time (PWT)
• Timor-Leste Time (TLT)
• Yakutsk Time (YAKT)

UTC+9:30 w/ no DST

• Australian Central Standard Time (ACST)

UTC+9:30/UTC+10:30

• Australian Central Standard Time / Australian Central Daylight Saving Time (ACST/ACDT)

UTC+10 w/ no DST

• Australian Eastern Standard Time (AEST)
• Chamorro Standard Time (ChST)
• Chuuk Time (CHUT)
• Dumont-d'Urville Time (DDUT)
• Magadan Time (MAGT)
• Papua New Guinea Time (PGT)
• Sakhalin Time (SAKT)
• Vladivostok Time (VLAT)

UTC+12/UTC+13

• Australian Eastern Standard Time / Australian Eastern Daylight Saving Time (AEST/AEDT)

UTC+10:30/UTC+11

• Lord Howe Standard Time / Lord Howe Daylight Saving Time (LHST/LHDT)

UTC+11 w/ no DST

• Bougainville Standard Time (BOUST)
• Kosrae Time (KOST)
• Macquarie Island Time (MIST)
• New Caledonia Time (NCT)
• Pohnpei Time (PONT)
• Solomon Islands Time (SBT)
• Srednekolymsk Time (SRET)
• Vanuatu Time (VUT)

UTC+11:30 w/ no DST

• Norfolk Time (NFT)

UTC+12 w/ no DST

• Anadyr Time (ANAT)
• Gilbert Islands Time (GILT)
• Marshall Islands Time (MHT)
• Nauru Time (NRT)
• Petropavlovsk-Kamchatski Time (PETT)
• Tuvalu Time (TVT)
• Wake Time (WAKT)
• Wallis and Futuna Time (WFT)

UTC+12/UTC+13

• Fiji Time / Fiji Summer Time (FJT/FJST)
• New Zealand Standard Time / New Zealand Daylight Saving Time (NZST/NZDT)

UTC+12:45/UTC+13:45

• Chatham Island Standard Time / Chatham Island Daylight Saving Time (CHAST/CHADT)

UTC+13 w/ no DST

• Phoenix Islands Time (PHOT)
• Tokelau Time (TKT)
• Tonga Time (TOT)

UTC+13/UTC+14

• Samoa Standard Time / Samoa Daylight Saving Time (WSST/WSDT)

UTC+14 w/ no DST

• Line Islands Time (LINT)

Answer 2

As of 28 Dec 2014, a total of 41 distinct time offsets from Coordinated Universal Time (UTC) are used around the world every year, 39 of which are in use at the same time for part of every year. The 41 time zones currently are referred to by the 175 names listed below. 141 of the names are for Standard Time, and 34 of them are for Daylight Saving Time (DST).

UTC-11 w/ no DST

• Niue Time (NUT)
• American Samoa Standard Time (SST)

UTC-10 w/ no DST

• Cook Island Time (CKT)
• Hawaii-Aleutian Standard Time (HAST)
• Tahiti Time (TAHT)

UTC-10/UTC-9

• Hawaii-Aleutian Standard Time / Hawaii-Aleutian Daylight Saving Time (HAST/HADT)

UTC-9:30 w/ no DST

• Marquesas Time (MART)

UTC-9 w/ no DST

• Gambier Time (GAMT)

UTC-9/UTC-8

• Alaska Standard Time / Alaska Daylight Saving Time (AKST/AKDT)

UTC-8 w/ no DST

• Pacific Standard Time (PST)
• Pitcairn Standard Time (PST)

UTC-8/UTC-7

• Pacific Standard Time / Pacific Daylight Saving Time (PST/PDT)

UTC-7 w/ no DST

• Mountain Standard Time (MST)

UTC-7/UTC-6

• Mountain Standard Time / Mountain Daylight Saving Time (MST/MDT)

UTC-6 w/ no DST

• Central Standard Time (CST)
• Galapagos Time (GALT)

UTC-6/UTC-5

• Central Standard Time / Central Daylight Saving Time (CST/CDT)
• Easter Island Time / Easter Island Summer Time (EAST/EASST)

UTC-5 w/ no DST

• Acre Time (ACT)
• Colombia Time (COT)
• Eastern Standard Time (EST)
• Ecuador Time (ECT)
• Peru Time (PET)

UTC-5/UTC-4

• Cuba Standard Time / Cuba Daylight Saving Time (CUST/CUDT)
• Eastern Standard Time / Eastern Daylight Saving Time (EST/EDT)

UTC-4:30 w/ no DST

• Venezuelan Standard Time (VET)

UTC-4 w/ no DST

• Amazon Time (ANT)
• Atlantic Standard Time (AST)
• Bolivia Time (BOT)
• Guyana Time (GYT)

UTC-4/UTC-3

• Amazon Time / Amazon Summer Time (ANT/ANST)
• Atlantic Standard Time / Atlantic Daylight Saving Time (AST/ADT)
• Chile Time / Chile Summer Time (CLT/CLST)
• Paraguay Time / Paraguay Summer Time (PYT/PYST)

UTC-3:30/UTC-2:30

• Newfoundland Standard Time / Newfoundland Daylight Saving Time (NST/NDT)

UTC-3 w/ no DST

• Argentina Time (ART)
• Brasilia Time (BRT)
• Falkland Islands Summer Time (FKST)
• French Guiana Time (GFT)
• Rothera Time (ROTT)
• Suriname Time (SRT)

UTC-3/UTC-2

• Brasilia Time / Brasilia Summer Time (BRT/BRST)
• Pierre and Miquelon Standard Time / Pierre and Miquelon Daylight Saving Time (PMST/PMDT)
• Uruguay Time / Uruguay Summer Time (UYT/UYST)
• Western Greenland Time / Western Greenland Summer Time (WGT/WGST)

UTC-2 w/ no DST

• Fernando de Noronha Time (FNT)
• South Georgia Time (GST)

UTC-1 w/ no DST

• Cape Verde Time (CVT)

UTC-1/UTC-0

• Azores Time / Azores Summer Time (AZOT/AZOST)
• Eastern Greenland Time / Eastern Greenland Summer Time (EGT/EGST)

UTC+0 w/ no DST

• Greenwich Mean Time (GMT)

UTC+0/UTC+1

• Greenwich Mean Time / British Summer Time (GMT/BST)
• Greenwich Mean Time / Irish Summer Time (GMT/IEST)
• Western European Time / Western European Summer Time (WET/WEST)

UTC+1 w/ no DST

• Central European Time (CET)
• West Africa Time (WAT)

UTC+1/UTC+2

• Central European Time / Central European Summer Time (CET/CEST)
• West Africa Time / West Africa Summer Time (WAT/WAST)

UTC+2 w/ no DST

• Central Africa Time (CAT)
• Eastern European Time (EET)
• South Africa Standard Time (SAST)

UTC+2/UTC+3

• Eastern European Time / Eastern European Summer Time (EET/EEST)
• Israel Standard Time / Israel Daylight Saving Time (ILST/ILDT)

UTC+3 w/ no DST

• Arabia Standard Time (AAST)
• East Africa Time (EAT)
• Further-Eastern European Time (FET)
• Moscow Time (MSK)
• Syowa Time (SYOT)

UTC+3:30/UTC+4:30

• Iran Standard Time / Iran Daylight Saving Time (IRST/IRDT)

UTC+4 w/ no DST

• Armenia Time (AMT)
• Georgia Time (GET)
• Gulf Standard Time (GUST)
• Mauritius Time (MUT)
• Reunion Time (RET)
• Samara Time (SAMT)
• Seychelles Time (SCT)

UTC+4/UTC+5

• Azerbaijan Time / Azerbaijan Summer Time (AZT/AZST)

UTC+4:30 w/ no DST

• Afghanistan Time (AFT)

UTC+5 w/ no DST

• Aqtau Time (AQTT)
• Aqtobe Time (AQTT)
• French Southern Territories Time (TFT)
• Maldives Time (MVT)
• Mawson Time (MAWT)
• Oral Time (ORAT)
• Pakistan Time (PKT)
• Tajikistan Time (TJT)
• Turkmenistan Time (TMT)
• Uzbekistan Time (UZT)
• Yekaterinburg Time (YEKT)

UTC+5:30 w/ no DST

• India Time (INST)

UTC+5:45 w/ no DST

• Nepal Time (NPT)

UTC+6 w/ no DST

• Alma-Ata Time (ALMT)
• Bangladesh Standard Time (BdST)
• Bhutan Time (BTT)
• Indian Chagos Time (IOT)
• Kyrgyzstan Time (KGT)
• Novosibirsk Time (NOVT)
• Omsk Time (OMST)
• Qyzylorda Time (QYZT)
• Vostok Time (VOST)

UTC+6:30 w/ no DST

• Cocos Islands Time (CCT)
• Myanmar Time (MMT)

UTC+7 w/ no DST

• Christmas Island Time (CXT)
• Davis Time (DAVT)
• Hovd Time (HOVT)
• Indochina Time (ICT)
• Krasnoyarsk Time (KRAT)
• Western Indonesian Time (WIB)

UTC+8 w/ no DST

• Australian Western Standard Time (AWST)
• Brunei Darussalam Time (BNT)
• Central Indonesian Time (WITA)
• China Standard Time (CNST)
• Choibalsan Time (CHOT)
• Hong Kong Time (HKT)
• Irkutsk Time (IRKT)
• Malaysia Time (MYT)
• Philippine Time (PHT)
• Singapore Time (SGT)
• Ulaanbaatar Time (ULAT)

UTC+8:45 w/ no DST

• Australian Central Western Standard Time (ACWST)

UTC+9 w/ no DST

• Eastern Indonesian Time (WIT)
• Japan Standard Time (JST)
• Korea Standard Time (KST)
• Palau Time (PWT)
• Timor-Leste Time (TLT)
• Yakutsk Time (YAKT)

UTC+9:30 w/ no DST

• Australian Central Standard Time (ACST)

UTC+9:30/UTC+10:30

• Australian Central Standard Time / Australian Central Daylight Saving Time (ACST/ACDT)

UTC+10 w/ no DST

• Australian Eastern Standard Time (AEST)
• Chamorro Standard Time (ChST)
• Chuuk Time (CHUT)
• Dumont-d'Urville Time (DDUT)
• Magadan Time (MAGT)
• Papua New Guinea Time (PGT)
• Sakhalin Time (SAKT)
• Vladivostok Time (VLAT)

UTC+12/UTC+13

• Australian Eastern Standard Time / Australian Eastern Daylight Saving Time (AEST/AEDT)

UTC+10:30/UTC+11

• Lord Howe Standard Time / Lord Howe Daylight Saving Time (LHST/LHDT)

UTC+11 w/ no DST

• Bougainville Standard Time (BOUST)
• Kosrae Time (KOST)
• Macquarie Island Time (MIST)
• New Caledonia Time (NCT)
• Pohnpei Time (PONT)
• Solomon Islands Time (SBT)
• Srednekolymsk Time (SRET)
• Vanuatu Time (VUT)

UTC+11:30 w/ no DST

• Norfolk Time (NFT)

UTC+12 w/ no DST

• Anadyr Time (ANAT)
• Gilbert Islands Time (GILT)
• Marshall Islands Time (MHT)
• Nauru Time (NRT)
• Petropavlovsk-Kamchatski Time (PETT)
• Tuvalu Time (TVT)
• Wake Time (WAKT)
• Wallis and Futuna Time (WFT)

UTC+12/UTC+13

• Fiji Time / Fiji Summer Time (FJT/FJST)
• New Zealand Standard Time / New Zealand Daylight Saving Time (NZST/NZDT)

UTC+12:45/UTC+13:45

• Chatham Island Standard Time / Chatham Island Daylight Saving Time (CHAST/CHADT)

UTC+13 w/ no DST

• Phoenix Islands Time (PHOT)
• Tokelau Time (TKT)
• Tonga Time (TOT)

UTC+13/UTC+14

• Samoa Standard Time / Samoa Daylight Saving Time (WSST/WSDT)

UTC+14 w/ no DST

• Line Islands Time (LINT)

Answer 3

As of 28 Dec 2014, a total of 41 distinct time offsets from Coordinated Universal Time (UTC) are used around the world every year, 39 of which are in use at the same time for part of every year. The 41 time zones currently are referred to by the 175 names listed below. 141 of the names are for Standard Time, and 34 of them are for Daylight Saving Time (DST).

UTC-11 w/ no DST

• Niue Time (NUT)
• American Samoa Standard Time (SST)

UTC-10 w/ no DST

• Cook Island Time (CKT)
• Hawaii-Aleutian Standard Time (HAST)
• Tahiti Time (TAHT)

UTC-10/UTC-9

• Hawaii-Aleutian Standard Time / Hawaii-Aleutian Daylight Saving Time (HAST/HADT)

UTC-9:30 w/ no DST

• Marquesas Time (MART)

UTC-9 w/ no DST

• Gambier Time (GAMT)

UTC-9/UTC-8

• Alaska Standard Time / Alaska Daylight Saving Time (AKST/AKDT)

UTC-8 w/ no DST

• Pacific Standard Time (PST)
• Pitcairn Standard Time (PST)

UTC-8/UTC-7

• Pacific Standard Time / Pacific Daylight Saving Time (PST/PDT)

UTC-7 w/ no DST

• Mountain Standard Time (MST)

UTC-7/UTC-6

• Mountain Standard Time / Mountain Daylight Saving Time (MST/MDT)

UTC-6 w/ no DST

• Central Standard Time (CST)
• Galapagos Time (GALT)

UTC-6/UTC-5

• Central Standard Time / Central Daylight Saving Time (CST/CDT)
• Easter Island Time / Easter Island Summer Time (EAST/EASST)

UTC-5 w/ no DST

• Acre Time (ACT)
• Colombia Time (COT)
• Eastern Standard Time (EST)
• Ecuador Time (ECT)
• Peru Time (PET)

UTC-5/UTC-4

• Cuba Standard Time / Cuba Daylight Saving Time (CUST/CUDT)
• Eastern Standard Time / Eastern Daylight Saving Time (EST/EDT)

UTC-4:30 w/ no DST

• Venezuelan Standard Time (VET)

UTC-4 w/ no DST

• Amazon Time (ANT)
• Atlantic Standard Time (AST)
• Bolivia Time (BOT)
• Guyana Time (GYT)

UTC-4/UTC-3

• Amazon Time / Amazon Summer Time (ANT/ANST)
• Atlantic Standard Time / Atlantic Daylight Saving Time (AST/ADT)
• Chile Time / Chile Summer Time (CLT/CLST)
• Paraguay Time / Paraguay Summer Time (PYT/PYST)

UTC-3:30/UTC-2:30

• Newfoundland Standard Time / Newfoundland Daylight Saving Time (NST/NDT)

UTC-3 w/ no DST

• Argentina Time (ART)
• Brasilia Time (BRT)
• Falkland Islands Summer Time (FKST)
• French Guiana Time (GFT)
• Rothera Time (ROTT)
• Suriname Time (SRT)

UTC-3/UTC-2

• Brasilia Time / Brasilia Summer Time (BRT/BRST)
• Pierre and Miquelon Standard Time / Pierre and Miquelon Daylight Saving Time (PMST/PMDT)
• Uruguay Time / Uruguay Summer Time (UYT/UYST)
• Western Greenland Time / Western Greenland Summer Time (WGT/WGST)

UTC-2 w/ no DST

• Fernando de Noronha Time (FNT)
• South Georgia Time (GST)

UTC-1 w/ no DST

• Cape Verde Time (CVT)

UTC-1/UTC-0

• Azores Time / Azores Summer Time (AZOT/AZOST)
• Eastern Greenland Time / Eastern Greenland Summer Time (EGT/EGST)

UTC+0 w/ no DST

• Greenwich Mean Time (GMT)

UTC+0/UTC+1

• Greenwich Mean Time / British Summer Time (GMT/BST)
• Greenwich Mean Time / Irish Summer Time (GMT/IEST)
• Western European Time / Western European Summer Time (WET/WEST)

UTC+1 w/ no DST

• Central European Time (CET)
• West Africa Time (WAT)

UTC+1/UTC+2

• Central European Time / Central European Summer Time (CET/CEST)
• West Africa Time / West Africa Summer Time (WAT/WAST)

UTC+2 w/ no DST

• Central Africa Time (CAT)
• Eastern European Time (EET)
• South Africa Standard Time (SAST)

UTC+2/UTC+3

• Eastern European Time / Eastern European Summer Time (EET/EEST)
• Israel Standard Time / Israel Daylight Saving Time (ILST/ILDT)

UTC+3 w/ no DST

• Arabia Standard Time (AAST)
• East Africa Time (EAT)
• Further-Eastern European Time (FET)
• Moscow Time (MSK)
• Syowa Time (SYOT)

UTC+3:30/UTC+4:30

• Iran Standard Time / Iran Daylight Saving Time (IRST/IRDT)

UTC+4 w/ no DST

• Armenia Time (AMT)
• Georgia Time (GET)
• Gulf Standard Time (GUST)
• Mauritius Time (MUT)
• Reunion Time (RET)
• Samara Time (SAMT)
• Seychelles Time (SCT)

UTC+4/UTC+5

• Azerbaijan Time / Azerbaijan Summer Time (AZT/AZST)

UTC+4:30 w/ no DST

• Afghanistan Time (AFT)

UTC+5 w/ no DST

• Aqtau Time (AQTT)
• Aqtobe Time (AQTT)
• French Southern Territories Time (TFT)
• Maldives Time (MVT)
• Mawson Time (MAWT)
• Oral Time (ORAT)
• Pakistan Time (PKT)
• Tajikistan Time (TJT)
• Turkmenistan Time (TMT)
• Uzbekistan Time (UZT)
• Yekaterinburg Time (YEKT)

UTC+5:30 w/ no DST

• India Time (INST)

UTC+5:45 w/ no DST

• Nepal Time (NPT)

UTC+6 w/ no DST

• Alma-Ata Time (ALMT)
• Bangladesh Standard Time (BdST)
• Bhutan Time (BTT)
• Indian Chagos Time (IOT)
• Kyrgyzstan Time (KGT)
• Novosibirsk Time (NOVT)
• Omsk Time (OMST)
• Qyzylorda Time (QYZT)
• Vostok Time (VOST)

UTC+6:30 w/ no DST

• Cocos Islands Time (CCT)
• Myanmar Time (MMT)

UTC+7 w/ no DST

• Christmas Island Time (CXT)
• Davis Time (DAVT)
• Hovd Time (HOVT)
• Indochina Time (ICT)
• Krasnoyarsk Time (KRAT)
• Western Indonesian Time (WIB)

UTC+8 w/ no DST

• Australian Western Standard Time (AWST)
• Brunei Darussalam Time (BNT)
• Central Indonesian Time (WITA)
• China Standard Time (CNST)
• Choibalsan Time (CHOT)
• Hong Kong Time (HKT)
• Irkutsk Time (IRKT)
• Malaysia Time (MYT)
• Philippine Time (PHT)
• Singapore Time (SGT)
• Ulaanbaatar Time (ULAT)

UTC+8:45 w/ no DST

• Australian Central Western Standard Time (ACWST)

UTC+9 w/ no DST

• Eastern Indonesian Time (WIT)
• Japan Standard Time (JST)
• Korea Standard Time (KST)
• Palau Time (PWT)
• Timor-Leste Time (TLT)
• Yakutsk Time (YAKT)

UTC+9:30 w/ no DST

• Australian Central Standard Time (ACST)

UTC+9:30/UTC+10:30

• Australian Central Standard Time / Australian Central Daylight Saving Time (ACST/ACDT)

UTC+10 w/ no DST

• Australian Eastern Standard Time (AEST)
• Chamorro Standard Time (ChST)
• Chuuk Time (CHUT)
• Dumont-d'Urville Time (DDUT)
• Magadan Time (MAGT)
• Papua New Guinea Time (PGT)
• Sakhalin Time (SAKT)
• Vladivostok Time (VLAT)

UTC+12/UTC+13

• Australian Eastern Standard Time / Australian Eastern Daylight Saving Time (AEST/AEDT)

UTC+10:30/UTC+11

• Lord Howe Standard Time / Lord Howe Daylight Saving Time (LHST/LHDT)

UTC+11 w/ no DST

• Bougainville Standard Time (BOUST)
• Kosrae Time (KOST)
• Macquarie Island Time (MIST)
• New Caledonia Time (NCT)
• Pohnpei Time (PONT)
• Solomon Islands Time (SBT)
• Srednekolymsk Time (SRET)
• Vanuatu Time (VUT)

UTC+11:30 w/ no DST

• Norfolk Time (NFT)

UTC+12 w/ no DST

• Anadyr Time (ANAT)
• Gilbert Islands Time (GILT)
• Marshall Islands Time (MHT)
• Nauru Time (NRT)
• Petropavlovsk-Kamchatski Time (PETT)
• Tuvalu Time (TVT)
• Wake Time (WAKT)
• Wallis and Futuna Time (WFT)

UTC+12/UTC+13

• Fiji Time / Fiji Summer Time (FJT/FJST)
• New Zealand Standard Time / New Zealand Daylight Saving Time (NZST/NZDT)

UTC+12:45/UTC+13:45

• Chatham Island Standard Time / Chatham Island Daylight Saving Time (CHAST/CHADT)

UTC+13 w/ no DST

• Phoenix Islands Time (PHOT)
• Tokelau Time (TKT)
• Tonga Time (TOT)

UTC+13/UTC+14

• Samoa Standard Time / Samoa Daylight Saving Time (WSST/WSDT)

UTC+14 w/ no DST

• Line Islands Time (LINT)

Answer 4

According to the original concept there are 24 time zones. Appropriately, there is one for every hour of the day. The standard definition separates the zones by 15 degrees of longitude, with zero degrees, the prime meridian, being in the center of its zone. However, independent nations have every right to reckon time in a way that is locally useful and sensible to them. As a result there are many places that deviate from the originally defined zones, and not just by pulling an adjacent zone over to them. Some places operate on times that deviate from the Universal Time off-set by 30 or even 15 minutes, essentially creating new zones. There are 33 zones currently, taking into account all the variations.

Time in a given zone is usually given as an off-set from Coordinated Universal Time, UTC. For example, I live in the northeast US, where the off-set is UTC-5. UTC is time as reckoned since establishing atomic clocks, not the motion of the earth, as the standard. See link for more.

Answer 5

The earth is divided into 40 formal time zones, not 24 as might commonly be expected. See: http://en.wikipedia.org/wiki/List_of_time_zones for a complete list. Note that the number of time zones also varies with the season as some regions adopt daylight savings time (DST) while others (in the same time zone) choose not to use DST. This can lead to a seasonal increase or decrease in the total number of time zones.

According to PHC there are 24 Major time zones