acalculator

How many time zones are there?

The world uses 37 time zones, UTC−11:00 to UTC+14:00, as of September 30, 2026. The table shows every zone at an example time, 12:00 PM UTC; type any time or date.

Your numbers

Time zones
37

At 12:00 PM on September 30, 2026 in UTC, the world has 37 time zones and 37 UTC offsets in use.

UTC offsets in use at that moment
37
Pago Pago: American Samoa, Midway
1:00 AM · Wed, Sep 30 · UTC−11:00 · no daylight saving
Niue
1:00 AM · Wed, Sep 30 · UTC−11:00 · no daylight saving
Honolulu: Hawaii
2:00 AM HST · Wed, Sep 30 · UTC−10:00 · no daylight saving
Tahiti: Society Islands, Cook Islands
2:00 AM · Wed, Sep 30 · UTC−10:00 · no daylight saving
Adak: western Aleutian Islands, Alaska
3:00 AM HADT · Wed, Sep 30 · UTC−09:00 · daylight saving
Marquesas Islands
2:30 AM · Wed, Sep 30 · UTC−09:30 · no daylight saving
Gambier Islands
3:00 AM · Wed, Sep 30 · UTC−09:00 · no daylight saving
Anchorage: most of Alaska
4:00 AM AKDT · Wed, Sep 30 · UTC−08:00 · daylight saving
Pitcairn Islands
4:00 AM · Wed, Sep 30 · UTC−08:00 · no daylight saving
Los Angeles: US and Canada Pacific, Baja California
5:00 AM PDT · Wed, Sep 30 · UTC−07:00 · daylight saving
Phoenix: Arizona, western Mexico, Yukon
5:00 AM MST · Wed, Sep 30 · UTC−07:00 · no daylight saving
Denver: US and Canada Mountain
6:00 AM MDT · Wed, Sep 30 · UTC−06:00 · daylight saving
Galápagos Islands
6:00 AM · Wed, Sep 30 · UTC−06:00 · no daylight saving
Mexico City: central Mexico, Saskatchewan, Central America
6:00 AM CST · Wed, Sep 30 · UTC−06:00 · no daylight saving
Easter Island
7:00 AM · Wed, Sep 30 · UTC−05:00 · daylight saving
Chicago: US and Canada Central
7:00 AM CDT · Wed, Sep 30 · UTC−05:00 · daylight saving
Lima: Peru, Colombia, Ecuador
7:00 AM · Wed, Sep 30 · UTC−05:00 · no daylight saving
Jamaica: Cayman Islands, Panama, Quintana Roo
7:00 AM EST · Wed, Sep 30 · UTC−05:00 · no daylight saving
Havana: Cuba
8:00 AM · Wed, Sep 30 · UTC−04:00 · daylight saving
New York: US and Canada Eastern
8:00 AM EDT · Wed, Sep 30 · UTC−04:00 · daylight saving
Caracas: Venezuela, Bolivia, Guyana
8:00 AM · Wed, Sep 30 · UTC−04:00 · no daylight saving
Santo Domingo: eastern Caribbean, Puerto Rico
8:00 AM AST · Wed, Sep 30 · UTC−04:00 · no daylight saving
Santiago: most of Chile
9:00 AM · Wed, Sep 30 · UTC−03:00 · daylight saving
Halifax: Atlantic Canada, Bermuda
9:00 AM ADT · Wed, Sep 30 · UTC−03:00 · daylight saving
St. John’s: Newfoundland
9:30 AM NDT · Wed, Sep 30 · UTC−02:30 · daylight saving
São Paulo: eastern and southern South America
9:00 AM · Wed, Sep 30 · UTC−03:00 · no daylight saving
Saint Pierre and Miquelon
10:00 AM PMDT · Wed, Sep 30 · UTC−02:00 · daylight saving
Fernando de Noronha, South Georgia
10:00 AM · Wed, Sep 30 · UTC−02:00 · no daylight saving
Nuuk: most of Greenland
11:00 AM · Wed, Sep 30 · UTC−01:00 · daylight saving
Cape Verde
11:00 AM · Wed, Sep 30 · UTC−01:00 · no daylight saving
Azores
12:00 PM · Wed, Sep 30 · UTC+00:00 · daylight saving
Abidjan: far western Africa, Iceland
12:00 PM GMT · Wed, Sep 30 · UTC+00:00 · no daylight saving
London: United Kingdom
1:00 PM BST · Wed, Sep 30 · UTC+01:00 · daylight saving
Lisbon: Portugal, Canary Islands, Faroe Islands
1:00 PM WEST · Wed, Sep 30 · UTC+01:00 · daylight saving
Troll Station, Antarctica
2:00 PM · Wed, Sep 30 · UTC+02:00 · daylight saving
Algiers: Algeria, Tunisia
1:00 PM · Wed, Sep 30 · UTC+01:00 · no daylight saving
Lagos: western Africa
1:00 PM · Wed, Sep 30 · UTC+01:00 · no daylight saving
Dublin: Ireland
1:00 PM IST · Wed, Sep 30 · UTC+01:00 · daylight saving
Casablanca: Morocco
1:00 PM · Wed, Sep 30 · UTC+01:00 · no daylight saving
Paris: central Europe
2:00 PM CEST · Wed, Sep 30 · UTC+02:00 · daylight saving
Maputo: central Africa
2:00 PM · Wed, Sep 30 · UTC+02:00 · no daylight saving
Tripoli: Libya, Kaliningrad
2:00 PM · Wed, Sep 30 · UTC+02:00 · no daylight saving
Johannesburg: southern Africa
2:00 PM · Wed, Sep 30 · UTC+02:00 · no daylight saving
Athens: eastern Europe
3:00 PM EEST · Wed, Sep 30 · UTC+03:00 · daylight saving
Cairo: Egypt
3:00 PM · Wed, Sep 30 · UTC+03:00 · daylight saving
Beirut: Lebanon
3:00 PM · Wed, Sep 30 · UTC+03:00 · daylight saving
Gaza: Palestine
3:00 PM · Wed, Sep 30 · UTC+03:00 · daylight saving
Jerusalem: Israel
3:00 PM · Wed, Sep 30 · UTC+03:00 · daylight saving
Istanbul: Turkey, Belarus, the Near East
3:00 PM · Wed, Sep 30 · UTC+03:00 · no daylight saving
Nairobi: eastern Africa
3:00 PM · Wed, Sep 30 · UTC+03:00 · no daylight saving
Moscow: Moscow time in Russia
3:00 PM · Wed, Sep 30 · UTC+03:00 · no daylight saving
Tehran: Iran
3:30 PM · Wed, Sep 30 · UTC+03:30 · no daylight saving
Dubai: Persian Gulf, Caucasus, Samara, Seychelles, Réunion
4:00 PM · Wed, Sep 30 · UTC+04:00 · no daylight saving
Kabul: Afghanistan
4:30 PM · Wed, Sep 30 · UTC+04:30 · no daylight saving
Tashkent: Central Asia, Yekaterinburg, Maldives
5:00 PM · Wed, Sep 30 · UTC+05:00 · no daylight saving
Karachi: Pakistan
5:00 PM · Wed, Sep 30 · UTC+05:00 · no daylight saving
Colombo: Sri Lanka
5:30 PM · Wed, Sep 30 · UTC+05:30 · no daylight saving
Kolkata: India
5:30 PM IST · Wed, Sep 30 · UTC+05:30 · no daylight saving
Kathmandu: Nepal
5:45 PM · Wed, Sep 30 · UTC+05:45 · no daylight saving
Dhaka: Bangladesh, Bhutan, Kyrgyzstan, Omsk
6:00 PM · Wed, Sep 30 · UTC+06:00 · no daylight saving
Yangon: Myanmar, Cocos Islands
6:30 PM · Wed, Sep 30 · UTC+06:30 · no daylight saving
Bangkok: Indochina, Krasnoyarsk, Christmas Island
7:00 PM · Wed, Sep 30 · UTC+07:00 · no daylight saving
Jakarta: western Indonesia
7:00 PM · Wed, Sep 30 · UTC+07:00 · no daylight saving
Singapore: Malaysia, Brunei, Irkutsk
8:00 PM · Wed, Sep 30 · UTC+08:00 · no daylight saving
Perth: Western Australia
8:00 PM AWST · Wed, Sep 30 · UTC+08:00 · no daylight saving
Shanghai: China
8:00 PM · Wed, Sep 30 · UTC+08:00 · no daylight saving
Hong Kong
8:00 PM · Wed, Sep 30 · UTC+08:00 · no daylight saving
Manila: Philippines
8:00 PM · Wed, Sep 30 · UTC+08:00 · no daylight saving
Makassar: central Indonesia
8:00 PM · Wed, Sep 30 · UTC+08:00 · no daylight saving
Eucla: southeast Western Australia
8:45 PM ACWST · Wed, Sep 30 · UTC+08:45 · no daylight saving
Chita: Yakutsk, Palau, East Timor
9:00 PM · Wed, Sep 30 · UTC+09:00 · no daylight saving
Tokyo: Japan
9:00 PM · Wed, Sep 30 · UTC+09:00 · no daylight saving
Seoul: South Korea
9:00 PM · Wed, Sep 30 · UTC+09:00 · no daylight saving
Jayapura: eastern Indonesia
9:00 PM · Wed, Sep 30 · UTC+09:00 · no daylight saving
Darwin: Northern Territory
9:30 PM ACST · Wed, Sep 30 · UTC+09:30 · no daylight saving
Adelaide: South Australia
9:30 PM ACST · Wed, Sep 30 · UTC+09:30 · standard time
Vladivostok: Papua New Guinea, Chuuk, Yap
10:00 PM · Wed, Sep 30 · UTC+10:00 · no daylight saving
Brisbane: Queensland
10:00 PM AEST · Wed, Sep 30 · UTC+10:00 · no daylight saving
Guam: Mariana Islands
10:00 PM · Wed, Sep 30 · UTC+10:00 · no daylight saving
Sydney: New South Wales, Victoria, Tasmania
10:00 PM AEST · Wed, Sep 30 · UTC+10:00 · standard time
Lord Howe Island
10:30 PM LHST · Wed, Sep 30 · UTC+10:30 · standard time
Bougainville: Solomon Islands, Magadan, Kosrae
11:00 PM · Wed, Sep 30 · UTC+11:00 · no daylight saving
Norfolk Island
11:00 PM · Wed, Sep 30 · UTC+11:00 · standard time
Kamchatka: Fiji, Tuvalu, Marshall Islands
12:00 AM · Thu, Oct 1 · UTC+12:00 · no daylight saving
Auckland: New Zealand
1:00 AM NZDT · Thu, Oct 1 · UTC+13:00 · daylight saving
Chatham Islands
1:45 AM CHADT · Thu, Oct 1 · UTC+13:45 · daylight saving
Tongatapu: Tonga, Samoa, Tokelau, Kanton
1:00 AM · Thu, Oct 1 · UTC+13:00 · no daylight saving
Kiritimati: Line Islands
2:00 AM · Thu, Oct 1 · UTC+14:00 · no daylight saving

Answer for the example date Wednesday, September 30, 2026. It changes to today's date when the page loads.

Time zones: 37. At 12:00 PM on September 30, 2026 in UTC, the world has 37 time zones and 37 UTC offsets in use.

How to calculate

Lists every time zone of the world with the local time, abbreviation, UTC offset, and daylight saving in each, for any time and date.

Example with the default inputs (Time 12:00, In UTC, Date September 30, 2026) on the example date Wednesday, September 30, 2026: At 12:00 PM on September 30, 2026 in UTC, the world has 37 time zones and 37 UTC offsets in use.

Method: For the typed time in the chosen zone, find the instant (UTC) it names, then show each listed zone’s clock at that instant with its UTC offset, from the browser’s IANA time zone data.

  • The zones are IANA tzdata names from zonenow.tab (tzdata 2026a): Pacific/Pago_Pago, Pacific/Niue, Pacific/Honolulu, Pacific/Tahiti, America/Adak, Pacific/Marquesas, Pacific/Gambier, America/Anchorage, Pacific/Pitcairn, America/Los_Angeles, America/Phoenix, America/Denver, Pacific/Galapagos, America/Mexico_City, Pacific/Easter, America/Chicago, America/Lima, America/Jamaica, America/Havana, America/New_York, America/Caracas, America/Santo_Domingo, America/Santiago, America/Halifax, America/St_Johns, America/Sao_Paulo, America/Miquelon, America/Noronha, America/Nuuk, Atlantic/Cape_Verde, Atlantic/Azores, Africa/Abidjan, Europe/London, Europe/Lisbon, Antarctica/Troll, Africa/Algiers, Africa/Lagos, Europe/Dublin, Africa/Casablanca, Europe/Paris, Africa/Maputo, Africa/Tripoli, Africa/Johannesburg, Europe/Athens, Africa/Cairo, Asia/Beirut, Asia/Gaza, Asia/Jerusalem, Europe/Istanbul, Africa/Nairobi, Europe/Moscow, Asia/Tehran, Asia/Dubai, Asia/Kabul, Asia/Tashkent, Asia/Karachi, Asia/Colombo, Asia/Kolkata, Asia/Kathmandu, Asia/Dhaka, Asia/Yangon, Asia/Bangkok, Asia/Jakarta, Asia/Singapore, Australia/Perth, Asia/Shanghai, Asia/Hong_Kong, Asia/Manila, Asia/Makassar, Australia/Eucla, Asia/Chita, Asia/Tokyo, Asia/Seoul, Asia/Jayapura, Australia/Darwin, Australia/Adelaide, Asia/Vladivostok, Australia/Brisbane, Pacific/Guam, Australia/Sydney, Australia/Lord_Howe, Pacific/Bougainville, Pacific/Norfolk, Asia/Kamchatka, Pacific/Auckland, Pacific/Chatham, Pacific/Tongatapu, Pacific/Kiritimati. The browser supplies each zone's offsets and daylight saving rules, so a rule change arrives with a browser update.
  • “Time zones” counts the different standard offsets among the listed zones. A zone’s standard offset in a year is the lower of its offsets at 00:00 UTC on January 1 and July 1 of that UTC year.
  • “UTC offsets in use” counts the different offsets the listed zones show at that moment.
  • Each zone shows its local time, the abbreviation from the browser’s Unicode CLDR English names (left out when CLDR has none), the date as “Tue, Sep 29”, the offset as UTC+hh:mm or UTC−hh:mm, and “daylight saving” when the offset is ahead of the standard offset, “standard time” when the zone’s January 1 and July 1 offsets differ but it is on the standard offset, or “no daylight saving” when they are the same. Because the rule compares January 1 and July 1, a zone that moves its offset for good during a year (Cancún in 2015, Novosibirsk in 2016), or whose January 1 falls in Morocco’s Ramadan change (Casablanca in 2030 to 2033), shows the later offset as “daylight saving” for that year.
  • A time that does not exist in the chosen zone (skipped when clocks spring forward) has no answer. A time that occurs twice (when clocks fall back) shows both moments, earlier first, where they differ.
  • Dates from 2000 to 2040 work.

Machine-readable copies: Markdown, JSON.

Worked examples

Each example is checked against the calculator on every build.

  1. Time 12:00, In UTC, Date 2026-01-15 gives Time zones 37, UTC offsets in use at that moment 37, Pago Pago: American Samoa, Midway 1:00 AM · Thu, Jan 15 · UTC−11:00 · no daylight saving, Niue 1:00 AM · Thu, Jan 15 · UTC−11:00 · no daylight saving, Honolulu: Hawaii 2:00 AM HST · Thu, Jan 15 · UTC−10:00 · no daylight saving, Tahiti: Society Islands, Cook Islands 2:00 AM · Thu, Jan 15 · UTC−10:00 · no daylight saving, Adak: western Aleutian Islands, Alaska 2:00 AM HAST · Thu, Jan 15 · UTC−10:00 · standard time, Marquesas Islands 2:30 AM · Thu, Jan 15 · UTC−09:30 · no daylight saving, Gambier Islands 3:00 AM · Thu, Jan 15 · UTC−09:00 · no daylight saving, Anchorage: most of Alaska 3:00 AM AKST · Thu, Jan 15 · UTC−09:00 · standard time, Pitcairn Islands 4:00 AM · Thu, Jan 15 · UTC−08:00 · no daylight saving, Los Angeles: US and Canada Pacific, Baja California 4:00 AM PST · Thu, Jan 15 · UTC−08:00 · standard time, Phoenix: Arizona, western Mexico, Yukon 5:00 AM MST · Thu, Jan 15 · UTC−07:00 · no daylight saving, Denver: US and Canada Mountain 5:00 AM MST · Thu, Jan 15 · UTC−07:00 · standard time, Galápagos Islands 6:00 AM · Thu, Jan 15 · UTC−06:00 · no daylight saving, Mexico City: central Mexico, Saskatchewan, Central America 6:00 AM CST · Thu, Jan 15 · UTC−06:00 · no daylight saving, Easter Island 7:00 AM · Thu, Jan 15 · UTC−05:00 · daylight saving, Chicago: US and Canada Central 6:00 AM CST · Thu, Jan 15 · UTC−06:00 · standard time, Lima: Peru, Colombia, Ecuador 7:00 AM · Thu, Jan 15 · UTC−05:00 · no daylight saving, Jamaica: Cayman Islands, Panama, Quintana Roo 7:00 AM EST · Thu, Jan 15 · UTC−05:00 · no daylight saving, Havana: Cuba 7:00 AM · Thu, Jan 15 · UTC−05:00 · standard time, New York: US and Canada Eastern 7:00 AM EST · Thu, Jan 15 · UTC−05:00 · standard time, Caracas: Venezuela, Bolivia, Guyana 8:00 AM · Thu, Jan 15 · UTC−04:00 · no daylight saving, Santo Domingo: eastern Caribbean, Puerto Rico 8:00 AM AST · Thu, Jan 15 · UTC−04:00 · no daylight saving, Santiago: most of Chile 9:00 AM · Thu, Jan 15 · UTC−03:00 · daylight saving, Halifax: Atlantic Canada, Bermuda 8:00 AM AST · Thu, Jan 15 · UTC−04:00 · standard time, St. John’s: Newfoundland 8:30 AM NST · Thu, Jan 15 · UTC−03:30 · standard time, São Paulo: eastern and southern South America 9:00 AM · Thu, Jan 15 · UTC−03:00 · no daylight saving, Saint Pierre and Miquelon 9:00 AM PMST · Thu, Jan 15 · UTC−03:00 · standard time, Fernando de Noronha, South Georgia 10:00 AM · Thu, Jan 15 · UTC−02:00 · no daylight saving, Nuuk: most of Greenland 10:00 AM · Thu, Jan 15 · UTC−02:00 · standard time, Cape Verde 11:00 AM · Thu, Jan 15 · UTC−01:00 · no daylight saving, Azores 11:00 AM · Thu, Jan 15 · UTC−01:00 · standard time, Abidjan: far western Africa, Iceland 12:00 PM GMT · Thu, Jan 15 · UTC+00:00 · no daylight saving, London: United Kingdom 12:00 PM GMT · Thu, Jan 15 · UTC+00:00 · standard time, Lisbon: Portugal, Canary Islands, Faroe Islands 12:00 PM WET · Thu, Jan 15 · UTC+00:00 · standard time, Troll Station, Antarctica 12:00 PM GMT · Thu, Jan 15 · UTC+00:00 · standard time, Algiers: Algeria, Tunisia 1:00 PM · Thu, Jan 15 · UTC+01:00 · no daylight saving, Lagos: western Africa 1:00 PM · Thu, Jan 15 · UTC+01:00 · no daylight saving, Dublin: Ireland 12:00 PM GMT · Thu, Jan 15 · UTC+00:00 · standard time, Casablanca: Morocco 1:00 PM · Thu, Jan 15 · UTC+01:00 · no daylight saving, Paris: central Europe 1:00 PM CET · Thu, Jan 15 · UTC+01:00 · standard time, Maputo: central Africa 2:00 PM · Thu, Jan 15 · UTC+02:00 · no daylight saving, Tripoli: Libya, Kaliningrad 2:00 PM · Thu, Jan 15 · UTC+02:00 · no daylight saving, Johannesburg: southern Africa 2:00 PM · Thu, Jan 15 · UTC+02:00 · no daylight saving, Athens: eastern Europe 2:00 PM EET · Thu, Jan 15 · UTC+02:00 · standard time, Cairo: Egypt 2:00 PM · Thu, Jan 15 · UTC+02:00 · standard time, Beirut: Lebanon 2:00 PM · Thu, Jan 15 · UTC+02:00 · standard time, Gaza: Palestine 2:00 PM · Thu, Jan 15 · UTC+02:00 · standard time, Jerusalem: Israel 2:00 PM · Thu, Jan 15 · UTC+02:00 · standard time, Istanbul: Turkey, Belarus, the Near East 3:00 PM · Thu, Jan 15 · UTC+03:00 · no daylight saving, Nairobi: eastern Africa 3:00 PM · Thu, Jan 15 · UTC+03:00 · no daylight saving, Moscow: Moscow time in Russia 3:00 PM · Thu, Jan 15 · UTC+03:00 · no daylight saving, Tehran: Iran 3:30 PM · Thu, Jan 15 · UTC+03:30 · no daylight saving, Dubai: Persian Gulf, Caucasus, Samara, Seychelles, Réunion 4:00 PM · Thu, Jan 15 · UTC+04:00 · no daylight saving, Kabul: Afghanistan 4:30 PM · Thu, Jan 15 · UTC+04:30 · no daylight saving, Tashkent: Central Asia, Yekaterinburg, Maldives 5:00 PM · Thu, Jan 15 · UTC+05:00 · no daylight saving, Karachi: Pakistan 5:00 PM · Thu, Jan 15 · UTC+05:00 · no daylight saving, Colombo: Sri Lanka 5:30 PM · Thu, Jan 15 · UTC+05:30 · no daylight saving, Kolkata: India 5:30 PM IST · Thu, Jan 15 · UTC+05:30 · no daylight saving, Kathmandu: Nepal 5:45 PM · Thu, Jan 15 · UTC+05:45 · no daylight saving, Dhaka: Bangladesh, Bhutan, Kyrgyzstan, Omsk 6:00 PM · Thu, Jan 15 · UTC+06:00 · no daylight saving, Yangon: Myanmar, Cocos Islands 6:30 PM · Thu, Jan 15 · UTC+06:30 · no daylight saving, Bangkok: Indochina, Krasnoyarsk, Christmas Island 7:00 PM · Thu, Jan 15 · UTC+07:00 · no daylight saving, Jakarta: western Indonesia 7:00 PM · Thu, Jan 15 · UTC+07:00 · no daylight saving, Singapore: Malaysia, Brunei, Irkutsk 8:00 PM · Thu, Jan 15 · UTC+08:00 · no daylight saving, Perth: Western Australia 8:00 PM AWST · Thu, Jan 15 · UTC+08:00 · no daylight saving, Shanghai: China 8:00 PM · Thu, Jan 15 · UTC+08:00 · no daylight saving, Hong Kong 8:00 PM · Thu, Jan 15 · UTC+08:00 · no daylight saving, Manila: Philippines 8:00 PM · Thu, Jan 15 · UTC+08:00 · no daylight saving, Makassar: central Indonesia 8:00 PM · Thu, Jan 15 · UTC+08:00 · no daylight saving, Eucla: southeast Western Australia 8:45 PM ACWST · Thu, Jan 15 · UTC+08:45 · no daylight saving, Chita: Yakutsk, Palau, East Timor 9:00 PM · Thu, Jan 15 · UTC+09:00 · no daylight saving, Tokyo: Japan 9:00 PM · Thu, Jan 15 · UTC+09:00 · no daylight saving, Seoul: South Korea 9:00 PM · Thu, Jan 15 · UTC+09:00 · no daylight saving, Jayapura: eastern Indonesia 9:00 PM · Thu, Jan 15 · UTC+09:00 · no daylight saving, Darwin: Northern Territory 9:30 PM ACST · Thu, Jan 15 · UTC+09:30 · no daylight saving, Adelaide: South Australia 10:30 PM ACDT · Thu, Jan 15 · UTC+10:30 · daylight saving, Vladivostok: Papua New Guinea, Chuuk, Yap 10:00 PM · Thu, Jan 15 · UTC+10:00 · no daylight saving, Brisbane: Queensland 10:00 PM AEST · Thu, Jan 15 · UTC+10:00 · no daylight saving, Guam: Mariana Islands 10:00 PM · Thu, Jan 15 · UTC+10:00 · no daylight saving, Sydney: New South Wales, Victoria, Tasmania 11:00 PM AEDT · Thu, Jan 15 · UTC+11:00 · daylight saving, Lord Howe Island 11:00 PM LHDT · Thu, Jan 15 · UTC+11:00 · daylight saving, Bougainville: Solomon Islands, Magadan, Kosrae 11:00 PM · Thu, Jan 15 · UTC+11:00 · no daylight saving, Norfolk Island 12:00 AM · Fri, Jan 16 · UTC+12:00 · daylight saving, Kamchatka: Fiji, Tuvalu, Marshall Islands 12:00 AM · Fri, Jan 16 · UTC+12:00 · no daylight saving, Auckland: New Zealand 1:00 AM NZDT · Fri, Jan 16 · UTC+13:00 · daylight saving, Chatham Islands 1:45 AM CHADT · Fri, Jan 16 · UTC+13:45 · daylight saving, Tongatapu: Tonga, Samoa, Tokelau, Kanton 1:00 AM · Fri, Jan 16 · UTC+13:00 · no daylight saving, Kiritimati: Line Islands 2:00 AM · Fri, Jan 16 · UTC+14:00 · no daylight saving.Source: IANA Time Zone Database, tzdata 2026a (https://www.iana.org/time-zones)
  2. Time 12:00, In UTC, Date 2026-07-15 gives Time zones 37, UTC offsets in use at that moment 37, Pago Pago: American Samoa, Midway 1:00 AM · Wed, Jul 15 · UTC−11:00 · no daylight saving, Niue 1:00 AM · Wed, Jul 15 · UTC−11:00 · no daylight saving, Honolulu: Hawaii 2:00 AM HST · Wed, Jul 15 · UTC−10:00 · no daylight saving, Tahiti: Society Islands, Cook Islands 2:00 AM · Wed, Jul 15 · UTC−10:00 · no daylight saving, Adak: western Aleutian Islands, Alaska 3:00 AM HADT · Wed, Jul 15 · UTC−09:00 · daylight saving, Marquesas Islands 2:30 AM · Wed, Jul 15 · UTC−09:30 · no daylight saving, Gambier Islands 3:00 AM · Wed, Jul 15 · UTC−09:00 · no daylight saving, Anchorage: most of Alaska 4:00 AM AKDT · Wed, Jul 15 · UTC−08:00 · daylight saving, Pitcairn Islands 4:00 AM · Wed, Jul 15 · UTC−08:00 · no daylight saving, Los Angeles: US and Canada Pacific, Baja California 5:00 AM PDT · Wed, Jul 15 · UTC−07:00 · daylight saving, Phoenix: Arizona, western Mexico, Yukon 5:00 AM MST · Wed, Jul 15 · UTC−07:00 · no daylight saving, Denver: US and Canada Mountain 6:00 AM MDT · Wed, Jul 15 · UTC−06:00 · daylight saving, Galápagos Islands 6:00 AM · Wed, Jul 15 · UTC−06:00 · no daylight saving, Mexico City: central Mexico, Saskatchewan, Central America 6:00 AM CST · Wed, Jul 15 · UTC−06:00 · no daylight saving, Easter Island 6:00 AM · Wed, Jul 15 · UTC−06:00 · standard time, Chicago: US and Canada Central 7:00 AM CDT · Wed, Jul 15 · UTC−05:00 · daylight saving, Lima: Peru, Colombia, Ecuador 7:00 AM · Wed, Jul 15 · UTC−05:00 · no daylight saving, Jamaica: Cayman Islands, Panama, Quintana Roo 7:00 AM EST · Wed, Jul 15 · UTC−05:00 · no daylight saving, Havana: Cuba 8:00 AM · Wed, Jul 15 · UTC−04:00 · daylight saving, New York: US and Canada Eastern 8:00 AM EDT · Wed, Jul 15 · UTC−04:00 · daylight saving, Caracas: Venezuela, Bolivia, Guyana 8:00 AM · Wed, Jul 15 · UTC−04:00 · no daylight saving, Santo Domingo: eastern Caribbean, Puerto Rico 8:00 AM AST · Wed, Jul 15 · UTC−04:00 · no daylight saving, Santiago: most of Chile 8:00 AM · Wed, Jul 15 · UTC−04:00 · standard time, Halifax: Atlantic Canada, Bermuda 9:00 AM ADT · Wed, Jul 15 · UTC−03:00 · daylight saving, St. John’s: Newfoundland 9:30 AM NDT · Wed, Jul 15 · UTC−02:30 · daylight saving, São Paulo: eastern and southern South America 9:00 AM · Wed, Jul 15 · UTC−03:00 · no daylight saving, Saint Pierre and Miquelon 10:00 AM PMDT · Wed, Jul 15 · UTC−02:00 · daylight saving, Fernando de Noronha, South Georgia 10:00 AM · Wed, Jul 15 · UTC−02:00 · no daylight saving, Nuuk: most of Greenland 11:00 AM · Wed, Jul 15 · UTC−01:00 · daylight saving, Cape Verde 11:00 AM · Wed, Jul 15 · UTC−01:00 · no daylight saving, Azores 12:00 PM · Wed, Jul 15 · UTC+00:00 · daylight saving, Abidjan: far western Africa, Iceland 12:00 PM GMT · Wed, Jul 15 · UTC+00:00 · no daylight saving, London: United Kingdom 1:00 PM BST · Wed, Jul 15 · UTC+01:00 · daylight saving, Lisbon: Portugal, Canary Islands, Faroe Islands 1:00 PM WEST · Wed, Jul 15 · UTC+01:00 · daylight saving, Troll Station, Antarctica 2:00 PM · Wed, Jul 15 · UTC+02:00 · daylight saving, Algiers: Algeria, Tunisia 1:00 PM · Wed, Jul 15 · UTC+01:00 · no daylight saving, Lagos: western Africa 1:00 PM · Wed, Jul 15 · UTC+01:00 · no daylight saving, Dublin: Ireland 1:00 PM IST · Wed, Jul 15 · UTC+01:00 · daylight saving, Casablanca: Morocco 1:00 PM · Wed, Jul 15 · UTC+01:00 · no daylight saving, Paris: central Europe 2:00 PM CEST · Wed, Jul 15 · UTC+02:00 · daylight saving, Maputo: central Africa 2:00 PM · Wed, Jul 15 · UTC+02:00 · no daylight saving, Tripoli: Libya, Kaliningrad 2:00 PM · Wed, Jul 15 · UTC+02:00 · no daylight saving, Johannesburg: southern Africa 2:00 PM · Wed, Jul 15 · UTC+02:00 · no daylight saving, Athens: eastern Europe 3:00 PM EEST · Wed, Jul 15 · UTC+03:00 · daylight saving, Cairo: Egypt 3:00 PM · Wed, Jul 15 · UTC+03:00 · daylight saving, Beirut: Lebanon 3:00 PM · Wed, Jul 15 · UTC+03:00 · daylight saving, Gaza: Palestine 3:00 PM · Wed, Jul 15 · UTC+03:00 · daylight saving, Jerusalem: Israel 3:00 PM · Wed, Jul 15 · UTC+03:00 · daylight saving, Istanbul: Turkey, Belarus, the Near East 3:00 PM · Wed, Jul 15 · UTC+03:00 · no daylight saving, Nairobi: eastern Africa 3:00 PM · Wed, Jul 15 · UTC+03:00 · no daylight saving, Moscow: Moscow time in Russia 3:00 PM · Wed, Jul 15 · UTC+03:00 · no daylight saving, Tehran: Iran 3:30 PM · Wed, Jul 15 · UTC+03:30 · no daylight saving, Dubai: Persian Gulf, Caucasus, Samara, Seychelles, Réunion 4:00 PM · Wed, Jul 15 · UTC+04:00 · no daylight saving, Kabul: Afghanistan 4:30 PM · Wed, Jul 15 · UTC+04:30 · no daylight saving, Tashkent: Central Asia, Yekaterinburg, Maldives 5:00 PM · Wed, Jul 15 · UTC+05:00 · no daylight saving, Karachi: Pakistan 5:00 PM · Wed, Jul 15 · UTC+05:00 · no daylight saving, Colombo: Sri Lanka 5:30 PM · Wed, Jul 15 · UTC+05:30 · no daylight saving, Kolkata: India 5:30 PM IST · Wed, Jul 15 · UTC+05:30 · no daylight saving, Kathmandu: Nepal 5:45 PM · Wed, Jul 15 · UTC+05:45 · no daylight saving, Dhaka: Bangladesh, Bhutan, Kyrgyzstan, Omsk 6:00 PM · Wed, Jul 15 · UTC+06:00 · no daylight saving, Yangon: Myanmar, Cocos Islands 6:30 PM · Wed, Jul 15 · UTC+06:30 · no daylight saving, Bangkok: Indochina, Krasnoyarsk, Christmas Island 7:00 PM · Wed, Jul 15 · UTC+07:00 · no daylight saving, Jakarta: western Indonesia 7:00 PM · Wed, Jul 15 · UTC+07:00 · no daylight saving, Singapore: Malaysia, Brunei, Irkutsk 8:00 PM · Wed, Jul 15 · UTC+08:00 · no daylight saving, Perth: Western Australia 8:00 PM AWST · Wed, Jul 15 · UTC+08:00 · no daylight saving, Shanghai: China 8:00 PM · Wed, Jul 15 · UTC+08:00 · no daylight saving, Hong Kong 8:00 PM · Wed, Jul 15 · UTC+08:00 · no daylight saving, Manila: Philippines 8:00 PM · Wed, Jul 15 · UTC+08:00 · no daylight saving, Makassar: central Indonesia 8:00 PM · Wed, Jul 15 · UTC+08:00 · no daylight saving, Eucla: southeast Western Australia 8:45 PM ACWST · Wed, Jul 15 · UTC+08:45 · no daylight saving, Chita: Yakutsk, Palau, East Timor 9:00 PM · Wed, Jul 15 · UTC+09:00 · no daylight saving, Tokyo: Japan 9:00 PM · Wed, Jul 15 · UTC+09:00 · no daylight saving, Seoul: South Korea 9:00 PM · Wed, Jul 15 · UTC+09:00 · no daylight saving, Jayapura: eastern Indonesia 9:00 PM · Wed, Jul 15 · UTC+09:00 · no daylight saving, Darwin: Northern Territory 9:30 PM ACST · Wed, Jul 15 · UTC+09:30 · no daylight saving, Adelaide: South Australia 9:30 PM ACST · Wed, Jul 15 · UTC+09:30 · standard time, Vladivostok: Papua New Guinea, Chuuk, Yap 10:00 PM · Wed, Jul 15 · UTC+10:00 · no daylight saving, Brisbane: Queensland 10:00 PM AEST · Wed, Jul 15 · UTC+10:00 · no daylight saving, Guam: Mariana Islands 10:00 PM · Wed, Jul 15 · UTC+10:00 · no daylight saving, Sydney: New South Wales, Victoria, Tasmania 10:00 PM AEST · Wed, Jul 15 · UTC+10:00 · standard time, Lord Howe Island 10:30 PM LHST · Wed, Jul 15 · UTC+10:30 · standard time, Bougainville: Solomon Islands, Magadan, Kosrae 11:00 PM · Wed, Jul 15 · UTC+11:00 · no daylight saving, Norfolk Island 11:00 PM · Wed, Jul 15 · UTC+11:00 · standard time, Kamchatka: Fiji, Tuvalu, Marshall Islands 12:00 AM · Thu, Jul 16 · UTC+12:00 · no daylight saving, Auckland: New Zealand 12:00 AM NZST · Thu, Jul 16 · UTC+12:00 · standard time, Chatham Islands 12:45 AM CHAST · Thu, Jul 16 · UTC+12:45 · standard time, Tongatapu: Tonga, Samoa, Tokelau, Kanton 1:00 AM · Thu, Jul 16 · UTC+13:00 · no daylight saving, Kiritimati: Line Islands 2:00 AM · Thu, Jul 16 · UTC+14:00 · no daylight saving.Source: IANA Time Zone Database, tzdata 2026a (https://www.iana.org/time-zones)

Other questions people ask

How many time zones are there?

As of Wednesday, September 30, 2026, the 88 zones of the IANA “zonenow” list (one for each group of places whose clocks will agree from now on) use 37 different standard UTC offsets, and 37 different offsets are in use at 12:00 UTC that day. The count changes with daylight saving and whenever a country changes its clocks, which is why the table works it out from your browser’s data.

Which time zones are the first and last to reach a new day?

As of Wednesday, September 30, 2026, the easternmost offset is UTC+14:00 (Kiritimati: Line Islands) and the westernmost is UTC−11:00 (Pago Pago: American Samoa, Midway and Niue), so for part of each day two dates are in use at once.

Why do some time zones differ by 30 or 45 minutes?

Countries pick the offset that suits them, and not all pick whole hours. As of Wednesday, September 30, 2026, these standard offsets are not whole hours: UTC−09:30, UTC−03:30, UTC+03:30, UTC+04:30, UTC+05:30, UTC+05:45, UTC+06:30, UTC+08:45, UTC+09:30, UTC+10:30, and UTC+12:45. India (UTC+05:30), Nepal (UTC+05:45), and Newfoundland (UTC−03:30) are the best-known.

What is UTC?

Coordinated Universal Time, the world’s reference time scale. Every time zone is written as an offset from it: New York in winter is UTC−05:00, five hours behind. GMT, as a clock time, is the same as UTC.