| Ülke / Bölge | Yaz saati başlangıç | Yaz saati bitiş |
| Aland Islands | 25-03-2012 03:00 | 28-10-2012 04:00 |
| Almanya | 25-03-2012 02:00 | 28-10-2012 03:00 |
| Amerika Birleşik Devletleri / Nevada (exception) | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Amerika Birleşik Devletleri / Alabama | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Amerika Birleşik Devletleri / Alaska | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Amerika Birleşik Devletleri / Alaska (Aleutian Islands) | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Amerika Birleşik Devletleri / Arizona (Navajo Reservation) | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Amerika Birleşik Devletleri / Arkansas | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Amerika Birleşik Devletleri / California | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Amerika Birleşik Devletleri / Colorado | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Amerika Birleşik Devletleri / Connecticut | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Amerika Birleşik Devletleri / Delaware | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Amerika Birleşik Devletleri / District of Columbia | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Amerika Birleşik Devletleri / Florida | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Amerika Birleşik Devletleri / Florida (far west) | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Amerika Birleşik Devletleri / Georgia | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Amerika Birleşik Devletleri / Idaho (southern) | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Amerika Birleşik Devletleri / Idaho (northern) | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Amerika Birleşik Devletleri / Illinois | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Amerika Birleşik Devletleri / Indiana | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Amerika Birleşik Devletleri / Indiana (far west) | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Amerika Birleşik Devletleri / Iowa | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Amerika Birleşik Devletleri / Kansas | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Amerika Birleşik Devletleri / Kansas (exception) | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Amerika Birleşik Devletleri / Kentucky (eastern) | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Amerika Birleşik Devletleri / Kentucky (western) | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Amerika Birleşik Devletleri / Louisiana | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Amerika Birleşik Devletleri / Maine | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Amerika Birleşik Devletleri / Maryland | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Amerika Birleşik Devletleri / Massachusetts | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Amerika Birleşik Devletleri / Michigan | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Amerika Birleşik Devletleri / Michigan (exception) | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Amerika Birleşik Devletleri / Minnesota | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Amerika Birleşik Devletleri / Mississippi | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Amerika Birleşik Devletleri / Missouri | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Amerika Birleşik Devletleri / Montana | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Amerika Birleşik Devletleri / Nebraska | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Amerika Birleşik Devletleri / Nebraska (western) | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Amerika Birleşik Devletleri / Nevada | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Amerika Birleşik Devletleri / New Hampshire | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Amerika Birleşik Devletleri / New Jersey | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Amerika Birleşik Devletleri / New Mexico | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Amerika Birleşik Devletleri / New York | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Amerika Birleşik Devletleri / North Carolina | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Amerika Birleşik Devletleri / North Dakota | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Amerika Birleşik Devletleri / North Dakota (western) | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Amerika Birleşik Devletleri / Ohio | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Amerika Birleşik Devletleri / Oklahoma | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Amerika Birleşik Devletleri / Oregon | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Amerika Birleşik Devletleri / Oregon (exception) | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Amerika Birleşik Devletleri / Pennsylvania | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Amerika Birleşik Devletleri / Rhode Island | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Amerika Birleşik Devletleri / South Carolina | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Amerika Birleşik Devletleri / South Dakota (eastern) | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Amerika Birleşik Devletleri / South Dakota (western) | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Amerika Birleşik Devletleri / Tennessee (western) | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Amerika Birleşik Devletleri / Tennessee (eastern) | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Amerika Birleşik Devletleri / Texas | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Amerika Birleşik Devletleri / Texas (far west) | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Amerika Birleşik Devletleri / Utah | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Amerika Birleşik Devletleri / Vermont | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Amerika Birleşik Devletleri / Virginia | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Amerika Birleşik Devletleri / Washington | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Amerika Birleşik Devletleri / West Virginia | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Amerika Birleşik Devletleri / Wisconsin | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Amerika Birleşik Devletleri / Wyoming | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Andorra | 25-03-2012 02:00 | 28-10-2012 03:00 |
| Arnavutluk | 25-03-2012 02:00 | 28-10-2012 03:00 |
| Avustralya / Australian Capital Territory | 02-10-2011 02:00 | 01-04-2012 03:00 |
| Avustralya / Broken Hill | 02-10-2011 02:00 | 01-04-2012 03:00 |
| Avustralya / Lord Howe Island | 02-10-2011 02:00 | 01-04-2012 02:30 |
| Avustralya / New South Wales | 02-10-2011 02:00 | 01-04-2012 03:00 |
| Avustralya / South Australia | 02-10-2011 02:00 | 01-04-2012 03:00 |
| Avustralya / Tasmania | 02-10-2011 02:00 | 01-04-2012 03:00 |
| Avustralya / Victoria | 02-10-2011 02:00 | 01-04-2012 03:00 |
| Avusturya | 25-03-2012 02:00 | 28-10-2012 03:00 |
| Azerbaycan | 25-03-2012 04:00 | 28-10-2012 05:00 |
| Bahamalar | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Batı Sahara | 01-04-2012 00:00 | 29-07-2012 00:00 |
| Belçika | 25-03-2012 02:00 | 28-10-2012 03:00 |
| Bermuda | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Bosna Hersek | 25-03-2012 02:00 | 28-10-2012 03:00 |
| Brezilya / Bahia | 16-10-2011 00:00 | 26-02-2012 00:00 |
| Brezilya / Distrito Federal | 16-10-2011 00:00 | 26-02-2012 00:00 |
| Brezilya / Espirto Santo | 16-10-2011 00:00 | 26-02-2012 00:00 |
| Brezilya / Goias | 16-10-2011 00:00 | 26-02-2012 00:00 |
| Brezilya / Mato Grosso | 16-10-2011 00:00 | 26-02-2012 00:00 |
| Brezilya / Mato Grosso do Sul | 16-10-2011 00:00 | 26-02-2012 00:00 |
| Brezilya / Minas Gerais | 16-10-2011 00:00 | 26-02-2012 00:00 |
| Brezilya / Parana | 16-10-2011 00:00 | 26-02-2012 00:00 |
| Brezilya / Rio de Janeiro | 16-10-2011 00:00 | 26-02-2012 00:00 |
| Brezilya / Rio Grande do Sul | 16-10-2011 00:00 | 26-02-2012 00:00 |
| Brezilya / Santa Catarina | 16-10-2011 00:00 | 26-02-2012 00:00 |
| Brezilya / Sao Paulo | 16-10-2011 00:00 | 26-02-2012 00:00 |
| Bulgaristan | 25-03-2012 03:00 | 28-10-2012 04:00 |
| Çek Cumhuriyeti | 25-03-2012 02:00 | 28-10-2012 03:00 |
| Danimarka | 25-03-2012 02:00 | 28-10-2012 03:00 |
| Estonya | 25-03-2012 03:00 | 28-10-2012 04:00 |
| Faroe Adaları | 25-03-2012 01:00 | 28-10-2012 02:00 |
| Fas | 01-04-2012 00:00 | 29-07-2012 00:00 |
| Fiji | 28-10-2012 02:00 | 27-01-2013 03:00 |
| Filistin (Batı Şeria) | 30-03-2012 00:00 | 23-09-2012 00:00 |
| Filistin (Gazze Şeridi) | 31-03-2012 00:00 | 01-10-2012 00:00 |
| Finlandiya | 25-03-2012 03:00 | 28-10-2012 04:00 |
| Fransa | 25-03-2012 02:00 | 28-10-2012 03:00 |
| Gibraltar | 25-03-2012 02:00 | 28-10-2012 03:00 |
| Grönland / Greenland | 17-03-2012 22:00 | 27-10-2012 23:00 |
| Grönland / Ittoqqortoormiit, Nerlerit Inaat | 18-03-2012 00:00 | 28-10-2012 01:00 |
| Grönland / Pituffik | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Guernsey | 25-03-2012 01:00 | 28-10-2012 02:00 |
| Güney Kıbrıs | 25-03-2012 03:00 | 28-10-2012 04:00 |
| Hırvatistan | 25-03-2012 02:00 | 28-10-2012 03:00 |
| Hollanda | 25-03-2012 02:00 | 28-10-2012 03:00 |
| Holy See | 25-03-2012 02:00 | 28-10-2012 03:00 |
| Isle of Man | 25-03-2012 01:00 | 28-10-2012 02:00 |
| İngiltere | 25-03-2012 01:00 | 28-10-2012 02:00 |
| İran | 22-03-2012 00:00 | 22-09-2012 00:00 |
| İrlanda | 25-03-2012 01:00 | 28-10-2012 02:00 |
| İspanya / Canary Islands | 25-03-2012 02:00 | 28-10-2012 03:00 |
| İspanya / Mainland, Baleares, Melilla, Ceuta | 25-03-2012 02:00 | 28-10-2012 03:00 |
| İsrail | 30-03-2012 02:00 | 23-09-2012 02:00 |
| İsveç | 25-03-2012 02:00 | 28-10-2012 03:00 |
| İsviçre | 25-03-2012 02:00 | 28-10-2012 03:00 |
| İtalya | 25-03-2012 02:00 | 28-10-2012 03:00 |
| Jersey | 25-03-2012 01:00 | 28-10-2012 02:00 |
| Kanada / Alberta | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Kanada / British Columbia | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Kanada / British Columbia (exception 2) | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Kanada / Labrador | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Kanada / Labrador (exception) | 11-03-2012 03:00 | 04-11-2012 03:00 |
| Kanada / Manitoba | 11-03-2012 03:00 | 04-11-2012 03:00 |
| Kanada / New Brunswick | 11-03-2012 00:01 | 04-11-2012 00:01 |
| Kanada / Newfoundland | 11-03-2012 03:00 | 04-11-2012 03:00 |
| Kanada / Northwest Territories | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Kanada / Nova Scotia | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Kanada / Nunavut (Central) | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Kanada / Nunavut (Eastern) | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Kanada / Nunavut (Mountain) | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Kanada / Ontario | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Kanada / Ontario (western) | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Kanada / Prince Edward Island | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Kanada / Quebec | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Kanada / Saskatchewan (exceptions - east) | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Kanada / Saskatchewan (exceptions - west) | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Kanada / Yukon | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Karadağ | 25-03-2012 02:00 | 28-10-2012 03:00 |
| Kuzey Kıbrıs Türk Cumhuriyeti | 25-03-2012 03:00 | 28-10-2012 04:00 |
| Küba | 18-03-2012 00:00 | 11-11-2012 01:00 |
| Latvia | 25-03-2012 03:00 | 28-10-2012 04:00 |
| Liechtenstein | 25-03-2012 02:00 | 28-10-2012 03:00 |
| Lituanya | 25-03-2012 03:00 | 28-10-2012 04:00 |
| Luksemburg | 25-03-2012 02:00 | 28-10-2012 03:00 |
| Lübnan | 25-03-2012 00:00 | 28-10-2012 00:00 |
| Macaristan | 25-03-2012 02:00 | 28-10-2012 03:00 |
| Makedonya | 25-03-2012 02:00 | 28-10-2012 03:00 |
| Malta | 25-03-2012 02:00 | 28-10-2012 03:00 |
| Meksika / Mexico State | 01-04-2012 02:00 | 28-10-2012 02:00 |
| Meksika / Zacatecas | 01-04-2012 02:00 | 28-10-2012 02:00 |
| Meksika / Yucatan | 01-04-2012 02:00 | 28-10-2012 02:00 |
| Meksika / Veracruz | 01-04-2012 02:00 | 28-10-2012 02:00 |
| Meksika / Tlaxcala | 01-04-2012 02:00 | 28-10-2012 02:00 |
| Meksika / Tamaulipas (Border Region) | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Meksika / Tamaulipas | 01-04-2012 02:00 | 28-10-2012 02:00 |
| Meksika / Tabasco | 01-04-2012 02:00 | 28-10-2012 02:00 |
| Meksika / Sinaloa | 01-04-2012 02:00 | 28-10-2012 02:00 |
| Meksika / San Luis Potosí | 01-04-2012 02:00 | 28-10-2012 02:00 |
| Meksika / Quintana Roo | 01-04-2012 02:00 | 28-10-2012 02:00 |
| Meksika / Querétaro | 01-04-2012 02:00 | 28-10-2012 02:00 |
| Meksika / Puebla | 01-04-2012 02:00 | 28-10-2012 02:00 |
| Meksika / Oaxaca | 01-04-2012 02:00 | 28-10-2012 02:00 |
| Meksika / Nuevo León (Border Region) | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Meksika / Nuevo León | 01-04-2012 02:00 | 28-10-2012 02:00 |
| Meksika / Nayarit (Exception) | 01-04-2012 02:00 | 28-10-2012 02:00 |
| Meksika / Nayarit | 01-04-2012 02:00 | 28-10-2012 02:00 |
| Meksika / Morelos | 01-04-2012 02:00 | 28-10-2012 02:00 |
| Meksika / Michoacán | 01-04-2012 02:00 | 28-10-2012 02:00 |
| Meksika / Jalisco | 01-04-2012 02:00 | 28-10-2012 02:00 |
| Meksika / Hidalgo | 01-04-2012 02:00 | 28-10-2012 02:00 |
| Meksika / Guerrero | 01-04-2012 02:00 | 28-10-2012 02:00 |
| Meksika / Guanajuato | 01-04-2012 02:00 | 28-10-2012 02:00 |
| Meksika / Durango | 01-04-2012 02:00 | 28-10-2012 02:00 |
| Meksika / Distrito Federal | 01-04-2012 02:00 | 28-10-2012 02:00 |
| Meksika / Colima | 01-04-2012 02:00 | 28-10-2012 02:00 |
| Meksika / Coahuila (Border Region) | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Meksika / Coahuila | 01-04-2012 02:00 | 28-10-2012 02:00 |
| Meksika / Chihuahua (Border Region) | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Meksika / Chihuahua | 01-04-2012 02:00 | 28-10-2012 02:00 |
| Meksika / Chiapas | 01-04-2012 02:00 | 28-10-2012 02:00 |
| Meksika / Campeche | 01-04-2012 02:00 | 28-10-2012 02:00 |
| Meksika / Baja California Sur | 01-04-2012 02:00 | 28-10-2012 02:00 |
| Meksika / Baja California (Border Region) | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Meksika / Baja California | 01-04-2012 02:00 | 28-10-2012 02:00 |
| Meksika / Aguascalientes | 01-04-2012 02:00 | 28-10-2012 02:00 |
| Moldova | 25-03-2012 00:00 | 28-10-2012 00:00 |
| Monako | 25-03-2012 02:00 | 28-10-2012 03:00 |
| Namibia | 04-09-2011 02:00 | 01-04-2012 02:00 |
| Norveç | 25-03-2012 02:00 | 28-10-2012 03:00 |
| Paraguay | 02-10-2011 00:00 | 08-04-2012 00:00 |
| Polonya | 25-03-2012 02:00 | 28-10-2012 03:00 |
| Portekiz | 25-03-2012 01:00 | 28-10-2012 02:00 |
| Portekiz / Azores | 25-03-2012 00:00 | 28-10-2012 01:00 |
| Portekiz / Madeira Islands | 25-03-2012 01:00 | 28-10-2012 02:00 |
| Romanya | 25-03-2012 00:00 | 28-10-2012 00:00 |
| Saint Pierre and Miquelon | 11-03-2012 03:00 | 04-11-2012 02:00 |
| Samoa | 24-09-2011 03:00 | 01-04-2012 04:00 |
| San Marino | 25-03-2012 02:00 | 28-10-2012 03:00 |
| Serbia | 25-03-2012 02:00 | 28-10-2012 03:00 |
| Slovakya | 25-03-2012 02:00 | 28-10-2012 03:00 |
| Slovenya | 25-03-2012 02:00 | 28-10-2012 03:00 |
| Suriye | 06-04-2012 00:00 | 26-10-2012 00:00 |
| Svalbard and Jan Mayen | 25-03-2012 02:00 | 28-10-2012 03:00 |
| Şili | 21-08-2011 00:00 | 11-03-2012 00:00 |
| Şili - Easter Adası | 20-08-2011 22:00 | 10-03-2012 22:00 |
| Turks and Caicos Islands | 11-03-2012 00:00 | 04-11-2012 00:00 |
| Türkiye | 25-03-2012 03:00 | 28-10-2012 04:00 |
| Ukrayna | 25-03-2012 03:00 | 28-10-2012 04:00 |
| Uruguay | 02-10-2011 00:00 | 11-03-2012 00:00 |
| Ürdün | 30-03-2012 00:00 | 26-10-2012 01:00 |
| Yeni Zelanda | 25-09-2011 02:00 | 01-04-2012 03:00 |
| Yeni Zelanda - Chatham Adaları | 25-09-2011 02:45 | 01-04-2012 03:45 |
| Yunanistan | 25-03-2012 03:00 | 28-10-2012 04:00 |
