Page Comparison

$timezones = array(
        'America/Los_Angeles' => "(GMT-08:00) Pacific Time (US & Canada)",
        'America/Denver' => "(GMT-07:00) Mountain Time (US & Canada)",
        'America/Chicago' => "(GMT-06:00) Central Time (US & Canada)",
        'America/New_York' => "(GMT-05:00) Eastern Time (US & Canada)",
        'Pacific/Pago_Pago' => "(GMT-11:00) Coordinated Universal Time-11",
        'Pacific/Honolulu' => "(GMT-10:00) Hawaii",
        'America/Anchorage' => "(GMT-09:00) Alaska",
        'America/Mazatlan' => "(GMT-07:00) Chihuahua, La Paz, Mazatlan",
        'America/Guatemala' => "(GMT-06:00) Central America",
        'America/Mexico_City' => "(GMT-06:00) Guadalajara, Monterrey, Mexico City",
        'America/Regina' => '(GMT-06:00) Saskatchewan',
        'America/Bogota' => "(GMT-05:00) Bogota, Lima, Quito",
        'America/Caracas' => "(GMT-04:30) Caracas",
        'America/Asuncion' => "(GMT-04:00) Asuncion",
        'America/Halifax' => "(GMT-04:00) Atlantic Time (Canada)",
        'America/Santiago' => "(GMT-04:00) Santiago",
        'America/St_Johns' => "(GMT-03:30) St Johns, Newfoundland",
        'America/Buenos_Aires' => "(GMT-03:00) Buenos Aires",
        'America/Godthab' => "(GMT-03:00) Godthab, Greenland",
        'America/Montevideo' => "(GMT-03:00) Montevideo",
        'America/Sao_Paulo' => "(GMT-03:00) Sao Paulo, Brasilia",
        'America/Noronha' => "(GMT-02:00) Mid-Atlantic",
        'Atlantic/Azores' => "(GMT-01:00) Azores",
        'Atlantic/Cape_Verde' => "(GMT-01:00) Cape Verde Is.",
        'Europe/London' => "(GMT+00:00) Dublin, Edinburgh, Lisbon, London",
        'UTC' => "(GMT+00:00) Monrovia, Reykjavik",
        'Europe/Berlin' => "(GMT+01:00) Amsterdam, Berlin, Bern, Rome, Stockholm, Vienna",
        'Europe/Prague' => "(GMT+01:00) Belgrade, Bratislava, Budapest, Ljubljana, Prague",
        'Europe/Paris' => "(GMT+01:00) Brussels, Copenhagen, Madrid, Paris",
        'Europe/Warsaw' => "(GMT+01:00) Sarajevo, Skopje, Warsaw, Zagreb",
        'Africa/Windhoek' => "(GMT+01:00) Windhoek",
        'Africa/Johannesburg' => "(GMT+02:00) Johannesburg, Harare, Pretoria",
        'Asia/Beirut' => "(GMT+02:00) Beirut",
        'Europe/Bucharest' => "(GMT+02:00) Athens, Bucharest",
        'Europe/Istanbul' => "(GMT+02:00) Istanbul",
        'Asia/Damascus' => "(GMT+02:00) Damascus",
        'Asia/Jerusalem' => "(GMT+02:00) Jerusalem",
        'Africa/Cairo' => "(GMT+02:00) Cairo",
        'Europe/Kiev' => "(GMT+02:00) Helsinki, Kyiv, Riga, Sofia, Tallinn, Vilnius",
        'Asia/Amman' => "(GMT+03:00) Amman",
        'Europe/Minsk' => "(GMT+02:00) Kalinignrad, Minsk",
        'Asia/Baghdad' => "(GMT+03:00) Baghdad",
        'Asia/Riyadh' => '(GMT+03:00) Kuwait, Riyadh',
        'Asia/Tehran' => "(GMT+03:30) Tehran",
        'Europe/Moscow' => "(GMT+04:00) Moscow, St. Petersburg, Volgograd",
        'Asia/Dubai' => "(GMT+04:00) Dubai, Abu Dhabi, Muscat",
        'Asia/Yerevan' => "(GMT+04:00) Yerevan",
        'Asia/Baku' => "(GMT+04:00) Baku",
        'Asia/Kabul' => "(GMT+04:30) Kabul",
        'Asia/Karachi' => "(GMT+05:00) Islamabad, Karachi",
        'Asia/Kolkata' => "(GMT+05:30) Chennai, Kolkata, Mumbai, New Delhi",
        'Asia/Colombo' => "(GMT+05:30) Sri Lanka",
        'Asia/Kathmandu' => "(GMT+05:45) Kathmandu",
        'Asia/Yekaterinburg' => "(GMT+06:00) Ekaterinburg",
        'Asia/Dhaka' => "(GMT+06:00) Dhaka",
        'Asia/Rangoon' => "(GMT+06:30) Yangon",
        'Asia/Novosibirsk' => "(GMT+07:00) Novosibirsk",
        'Asia/Ho_Chi_Minh' => "(GMT+07:00) Hanoi, Hochiminh City, Bangkok",
        'Asia/Jakarta' => "(GMT+07:00) Jakarta",
        'Asia/Krasnoyarsk' => "(GMT+07:00) Krasnoyarsk",
        'Asia/Shanghai' => "(GMT+08:00) Shanghai, Beijing, Chongqing, Hong Kong, Urumqi",
        'Asia/Singapore' => "(GMT+08:00) Singapore, Kuala Lumpur",
        'Asia/Taipei' => "(GMT+08:00) Taipei",
        'Australia/Perth' => "(GMT+08:00) Perth",
        'Asia/Irkutsk' => "(GMT+09:00) Irkutsk",
        'Asia/Tokyo' => "(GMT+09:00) Osaka, Sapporo, Tokyo",
        'Asia/Seoul' => "(GMT+09:00) Seoul",
        'Australia/Darwin' => "(GMT+09:30) Darwin",
        'Australia/Adelaide' => "(GMT+09:30) Adelaide",
        'Australia/Brisbane' => "(GMT+10:00) Brisbane",
        'Pacific/Guam' => "(GMT+10:00) Guam, Port Moresby",
        'Asia/Yakutsk' => "(GMT+10:00) Yakutsk",
        'Australia/Sydney' => "(GMT+10:00) Canberra, Melbourne, Sydney",
        'Australia/Hobart' => "(GMT+10:00) Hobart",
        'Asia/Vladivostok' => "(GMT+11:00) Vladivostok",
        'Pacific/Fiji' => "(GMT+12:00) Fiji",
        'Asia/Magadan' => "(GMT+12:00) Magadan",
        'Pacific/Auckland' => "(GMT+12:00) Auckland, Wellington",
        'Pacific/Tongatapu' => "(GMT+13:00) Tongatapu, Nuku'alofa",
        'Pacific/Apia' => "(GMT+13:00) Samoa"
    )
);