List of timezones (PHP)

timezone-list.php

<?php

$listOfTimeZones = [
	'Africa'=> [
		'Africa/Algiers'=>'Algeria (+01:00)',
		'Africa/Gaborone'=>'Botswana (+02:00)',
		'Africa/Douala'=>'Cameroon (+01:00)',
		'Africa/Bangui'=>'Central African Republic (+01:00)',
		'Africa/Ndjamena'=>'Chad (+01:00)',
		'Africa/Kinshasa'=>'Democratic Republic of the Congo (+01:00)',
		'Africa/Djibouti'=>'Djibouti (+03:00)',
		'Africa/Cairo'=>'Egypt (+02:00)',
		'Africa/Malabo'=>'Equatorial Guinea (+01:00)',
		'Africa/Asmara'=>'Eritrea (+03:00)',
		'Africa/Addis_Ababa'=>'Ethiopia (+03:00)',
		'Africa/Libreville'=>'Gabon (+01:00)',
		'Africa/Banjul'=>'Gambia (+00:00)',
		'Africa/Accra'=>'Ghana (+00:00)',
		'Africa/Conakry'=>'Guinea (+00:00)',
		'Africa/Bissau'=>'Guinea-Bissau (+00:00)',
		'Africa/Abidjan'=>'Ivory Coast (+00:00)',
		'Africa/Nairobi'=>'Kenya (+03:00)',
		'Africa/Maseru'=>'Lesotho (+02:00)',
		'Africa/Monrovia'=>'Liberia (+00:00)',
		'Africa/Tripoli'=>'Libya (+02:00)',
		'Africa/Blantyre'=>'Malawi (+02:00)',
		'Africa/Bamako'=>'Mali (+00:00)',
		'Africa/Nouakchott'=>'Mauritania (+00:00)',
		'Africa/Casablanca'=>'Morocco (+01:00)',
		'Africa/Maputo'=>'Mozambique (+02:00)',
		'Africa/Windhoek'=>'Namibia (+01:00)',
		'Africa/Niamey'=>'Niger (+01:00)',
		'Africa/Lagos'=>'Nigeria (+01:00)',
		'Africa/Brazzaville'=>'Republic of the Congo (+01:00)',
		'Africa/Kigali'=>'Rwanda (+02:00)',
		'Africa/Sao_Tome'=>'Sao Tome and Principe (+00:00)',
		'Africa/Dakar'=>'Senegal (+00:00)',
		'Africa/Freetown'=>'Sierra Leone (+00:00)',
		'Africa/Mogadishu'=>'Somalia (+03:00)',
		'Africa/Johannesburg'=>'South Africa (+02:00)',
		'Africa/Juba'=>'South Sudan (+03:00)',
		'Africa/Khartoum'=>'Sudan (+03:00)',
		'Africa/Mbabane'=>'Swaziland (+02:00)',
		'Africa/Dar_es_Salaam'=>'Tanzania (+03:00)',
		'Africa/Lome'=>'Togo (+00:00)',
		'Africa/Tunis'=>'Tunisia (+01:00)',
		'Africa/Kampala'=>'Uganda (+03:00)',
		'Africa/El_Aaiun'=>'Western Sahara (+00:00)',
		'Africa/Lusaka'=>'Zambia (+02:00)',
		'Africa/Harare'=>'Zimbabwe (+02:00)',
	],

	'America'=> [
		'America/Nassau'=>'Bahamas (-04:00)',
		'America/Belize'=>'Belize (-06:00)',
		'America/Noronha'=>'Brazil (-02:00)',
		'America/Tortola'=>'British Virgin Islands (-04:00)',
		'America/St_Johns'=>'Canada (-02:30)',
		'America/Cayman'=>'Cayman Islands (-05:00)',
		'America/Santiago'=>'Chile (-04:00)',
		'America/Bogota'=>'Colombia (-05:00)',
		'America/Costa_Rica'=>'Costa Rica (-06:00)',
		'America/Havana'=>'Cuba (-04:00)',
		'America/Curacao'=>'Curaçao (-04:00)',
		'America/Dominica'=>'Dominica (-04:00)',
		'America/Santo_Domingo'=>'Dominican Republic (-04:00)',
		'America/Guayaquil'=>'Ecuador (-05:00)',
		'America/El_Salvador'=>'El Salvador (-06:00)',
		'America/Cayenne'=>'French Guiana (-03:00)',
		'America/Godthab'=>'Greenland (-02:00)',
		'America/Grenada'=>'Grenada (-04:00)',
		'America/Guadeloupe'=>'Guadeloupe (-04:00)',
		'America/Guatemala'=>'Guatemala (-06:00)',
		'America/Guyana'=>'Guyana (-04:00)',
		'America/Port-au-Prince'=>'Haiti (-05:00)',
		'America/Tegucigalpa'=>'Honduras (-06:00)',
		'America/Jamaica'=>'Jamaica (-05:00)',
		'America/Martinique'=>'Martinique (-04:00)',
		'America/Mexico_City'=>'Mexico (-05:00)',
		'America/Montserrat'=>'Montserrat (-04:00)',
		'America/Managua'=>'Nicaragua (-06:00)',
		'America/Panama'=>'Panama (-05:00)',
		'America/Asuncion'=>'Paraguay (-04:00)',
		'America/Lima'=>'Peru (-05:00)',
		'America/Puerto_Rico'=>'Puerto Rico (-04:00)',
		'America/St_Kitts'=>'Saint Kitts and Nevis (-04:00)',
		'America/St_Lucia'=>'Saint Lucia (-04:00)',
		'America/Marigot'=>'Saint Martin (-04:00)',
		'America/Miquelon'=>'Saint Pierre and Miquelon (-02:00)',
		'America/St_Vincent'=>'Saint Vincent and the Grenadines (-04:00)',
		'America/Lower_Princes'=>'Sint Maarten (-04:00)',
		'America/Paramaribo'=>'Suriname (-03:00)',
		'America/Port_of_Spain'=>'Trinidad and Tobago (-04:00)',
		'America/Grand_Turk'=>'Turks and Caicos Islands (-04:00)',
		'America/St_Thomas'=>'U.S. Virgin Islands (-04:00)',
		'America/New_York'=>'United States (-04:00)',
		'America/Montevideo'=>'Uruguay (-03:00)',
		'Europe/Vatican'=>'Vatican (+02:00)',
		'America/Caracas'=>'Venezuela (-04:30)',
	],

	'Arctic'=> [
		'Arctic/Longyearbyen'=>'Svalbard and Jan Mayen (+02:00)',
	],

	'Asia'=> [
		'Asia/Thimphu'=>'Bhutan (+06:00)',
		'Asia/Phnom_Penh'=>'Cambodia (+07:00)',
		'Asia/Shanghai'=>'China (+08:00)',
		'Asia/Nicosia'=>'Cyprus (+03:00)',
		'Asia/Dili'=>'East Timor (+09:00)',
		'Asia/Tbilisi'=>'Georgia (+04:00)',
		'Asia/Hong_Kong'=>'Hong Kong (+08:00)',
		'Asia/Kolkata'=>'India (+05:30)',
		'Asia/Jakarta'=>'Indonesia (+07:00)',
		'Asia/Tehran'=>'Iran (+04:30)',
		'Asia/Baghdad'=>'Iraq (+03:00)',
		'Asia/Jerusalem'=>'Israel (+03:00)',
		'Asia/Tokyo'=>'Japan (+09:00)',
		'Asia/Amman'=>'Jordan (+03:00)',
		'Asia/Almaty'=>'Kazakhstan (+06:00)',
		'Asia/Kuwait'=>'Kuwait (+03:00)',
		'Asia/Bishkek'=>'Kyrgyzstan (+06:00)',
		'Asia/Vientiane'=>'Laos (+07:00)',
		'Asia/Beirut'=>'Lebanon (+03:00)',
		'Asia/Macau'=>'Macao (+08:00)',
		'Asia/Kuala_Lumpur'=>'Malaysia (+08:00)',
		'Asia/Ulaanbaatar'=>'Mongolia (+08:00)',
		'Asia/Rangoon'=>'Myanmar (+06:30)',
		'Asia/Kathmandu'=>'Nepal (+05:45)',
		'Asia/Pyongyang'=>'North Korea (+09:00)',
		'Asia/Muscat'=>'Oman (+04:00)',
		'Asia/Karachi'=>'Pakistan (+05:00)',
		'Asia/Gaza'=>'Palestinian Territory (+02:00)',
		'Asia/Manila'=>'Philippines (+08:00)',
		'Asia/Qatar'=>'Qatar (+03:00)',
		'Asia/Riyadh'=>'Saudi Arabia (+03:00)',
		'Asia/Singapore'=>'Singapore (+08:00)',
		'Asia/Seoul'=>'South Korea (+09:00)',
		'Asia/Colombo'=>'Sri Lanka (+05:30)',
		'Asia/Damascus'=>'Syria (+03:00)',
		'Asia/Taipei'=>'Taiwan (+08:00)',
		'Asia/Dushanbe'=>'Tajikistan (+05:00)',
		'Asia/Bangkok'=>'Thailand (+07:00)',
		'Asia/Ashgabat'=>'Turkmenistan (+05:00)',
		'Asia/Samarkand'=>'Uzbekistan (+05:00)',
		'Asia/Ho_Chi_Minh'=>'Vietnam (+07:00)',
		'Asia/Aden'=>'Yemen (+03:00)',
	],

	'Atlantic'=> [
		'Atlantic/Cape_Verde'=>'Cape Verde (-01:00)',
		'Atlantic/Stanley'=>'Falkland Islands (-03:00)',
		'Atlantic/Faroe'=>'Faroe Islands (+01:00)',
		'Atlantic/Reykjavik'=>'Iceland (+00:00)',
		'Atlantic/St_Helena'=>'Saint Helena (+00:00)',
		'Atlantic/South_Georgia'=>'South Georgia and the South Sandwich Islands (-02:00)',
	],

	'Europe'=> [
		'Europe/Minsk'=>'Belarus (+03:00)',
		'Europe/Zagreb'=>'Croatia (+02:00)',
		'Europe/Prague'=>'Czech Republic (+02:00)',
		'Europe/Copenhagen'=>'Denmark (+02:00)',
		'Europe/Tallinn'=>'Estonia (+03:00)',
		'Europe/Helsinki'=>'Finland (+03:00)',
		'Europe/Paris'=>'France (+02:00)',
		'Europe/Berlin'=>'Germany (+02:00)',
		'Europe/Gibraltar'=>'Gibraltar (+02:00)',
		'Europe/Athens'=>'Greece (+03:00)',
		'Europe/Guernsey'=>'Guernsey (+01:00)',
		'Europe/Budapest'=>'Hungary (+02:00)',
		'Europe/Dublin'=>'Ireland (+01:00)',
		'Europe/Isle_of_Man'=>'Isle of Man (+01:00)',
		'Europe/Rome'=>'Italy (+02:00)',
		'Europe/Jersey'=>'Jersey (+01:00)',
		'Europe/Riga'=>'Latvia (+03:00)',
		'Europe/Vaduz'=>'Liechtenstein (+02:00)',
		'Europe/Vilnius'=>'Lithuania (+03:00)',
		'Europe/Luxembourg'=>'Luxembourg (+02:00)',
		'Europe/Skopje'=>'Macedonia (+02:00)',
		'Europe/Malta'=>'Malta (+02:00)',
		'Europe/Chisinau'=>'Moldova (+03:00)',
		'Europe/Monaco'=>'Monaco (+02:00)',
		'Europe/Podgorica'=>'Montenegro (+02:00)',
		'Europe/Amsterdam'=>'Netherlands (+02:00)',
		'Europe/Oslo'=>'Norway (+02:00)',
		'Europe/Warsaw'=>'Poland (+02:00)',
		'Europe/Lisbon'=>'Portugal (+01:00)',
		'Europe/Bucharest'=>'Romania (+03:00)',
		'Europe/Kaliningrad'=>'Russia (+03:00)',
		'Europe/San_Marino'=>'San Marino (+02:00)',
		'Europe/Belgrade'=>'Serbia (+02:00)',
		'Europe/Bratislava'=>'Slovakia (+02:00)',
		'Europe/Ljubljana'=>'Slovenia (+02:00)',
		'Europe/Madrid'=>'Spain (+02:00)',
		'Europe/Stockholm'=>'Sweden (+02:00)',
		'Europe/Zurich'=>'Switzerland (+02:00)',
		'Europe/Istanbul'=>'Turkey (+03:00)',
		'Europe/Kiev'=>'Ukraine (+03:00)',
		'Europe/London'=>'United Kingdom (+01:00)',
	],

	'Indian'=> [
		'Indian/Chagos'=>'British Indian Ocean Territory (+06:00)',
		'Indian/Christmas'=>'Christmas Island (+07:00)',
		'Indian/Cocos'=>'Cocos Islands (+06:30)',
		'Indian/Comoro'=>'Comoros (+03:00)',
		'Indian/Kerguelen'=>'French Southern Territories (+05:00)',
		'Indian/Antananarivo'=>'Madagascar (+03:00)',
		'Indian/Maldives'=>'Maldives (+05:00)',
		'Indian/Mauritius'=>'Mauritius (+04:00)',
		'Indian/Mayotte'=>'Mayotte (+03:00)',
		'Indian/Reunion'=>'Reunion (+04:00)',
		'Indian/Mahe'=>'Seychelles (+04:00)',
	],

	'Pacific'=> [
		'Pacific/Rarotonga'=>'Cook Islands (-10:00)',
		'Pacific/Fiji'=>'Fiji (+12:00)',
		'Pacific/Tahiti'=>'French Polynesia (-10:00)',
		'Pacific/Guam'=>'Guam (+10:00)',
		'Pacific/Tarawa'=>'Kiribati (+12:00)',
		'Pacific/Majuro'=>'Marshall Islands (+12:00)',
		'Pacific/Chuuk'=>'Micronesia (+10:00)',
		'Pacific/Nauru'=>'Nauru (+12:00)',
		'Pacific/Noumea'=>'New Caledonia (+11:00)',
		'Pacific/Auckland'=>'New Zealand (+12:00)',
		'Pacific/Niue'=>'Niue (-11:00)',
		'Pacific/Norfolk'=>'Norfolk Island (+11:30)',
		'Pacific/Saipan'=>'Northern Mariana Islands (+10:00)',
		'Pacific/Palau'=>'Palau (+09:00)',
		'Pacific/Port_Moresby'=>'Papua New Guinea (+10:00)',
		'Pacific/Pitcairn'=>'Pitcairn (-08:00)',
		'Pacific/Apia'=>'Samoa (+13:00)',
		'Pacific/Guadalcanal'=>'Solomon Islands (+11:00)',
		'Pacific/Fakaofo'=>'Tokelau (+14:00)',
		'Pacific/Tongatapu'=>'Tonga (+13:00)',
		'Pacific/Funafuti'=>'Tuvalu (+12:00)',
		'Pacific/Johnston'=>'United States Minor Outlying Islands (-10:00)',
		'Pacific/Efate'=>'Vanuatu (+11:00)',
		'Pacific/Wallis'=>'Wallis and Futuna (+12:00)',
	],
	
	'Other'=> [
		'UTC'=>'UTC',
	]
];
?>

The timezone identifier America/Godthab is outdated. In recent versions of PHP and the IANA timezone database, it has been renamed to America/Nuuk.

America/Godthab

print_r(new \DateTimeZone('America/Godthab'))

// DateInvalidTimeZoneException {#1939
//     #message: "DateTimeZone::__construct(): Unknown or bad timezone (America/Godthab)"
//     #code: 0
//     #file: "./routes/console.php"
//     #line: 54
// }

America/Nuuk

print_r(new \DateTimeZone('America/Nuuk'));

// DateTimeZone {
//     timezone: America/Nuuk (-02:00)
//     +"timezone_type": 3
//     +"timezone": "America/Nuuk"
// }

• See: https://data.iana.org/time-zones/tzdb-2021a/zone1970.tab