| Argentina | No clock change |
| Australia | New South Wales (Sydney): 4 Apr 2027 03:00 to 02:00 Back; New South Wales (Sydney): 3 Oct 2027 02:00 to 03:00 Forward; Victoria (Melbourne): 4 Apr 2027 03:00 to 02:00 Back; Victoria (Melbourne): 3 Oct 2027 02:00 to 03:00 Forward |
| Austria | Vienna: 28 Mar 2027 02:00 to 03:00 Forward; Vienna: 31 Oct 2027 03:00 to 02:00 Back |
| Bangladesh | No clock change |
| Belgium | Brussels: 28 Mar 2027 02:00 to 03:00 Forward; Brussels: 31 Oct 2027 03:00 to 02:00 Back |
| Brazil | No clock change |
| Bulgaria | Sofia: 28 Mar 2027 03:00 to 04:00 Forward; Sofia: 31 Oct 2027 04:00 to 03:00 Back |
| Canada | Ontario (Toronto) and Quebec (Montreal): 14 Mar 2027 02:00 to 03:00 Forward; Ontario (Toronto) and Quebec (Montreal): 7 Nov 2027 02:00 to 01:00 Back |
| Canary Islands | Las Palmas de Gran Canaria and Santa Cruz de Tenerife: 28 Mar 2027 01:00 to 02:00 Forward; Las Palmas de Gran Canaria and Santa Cruz de Tenerife: 31 Oct 2027 02:00 to 01:00 Back |
| Chile | Santiago: 4 Apr 2027 00:00 to 3 Apr 2027 23:00 Back; Santiago: 5 Sep 2027 00:00 to 01:00 Forward |
| China | No clock change |
| Colombia | No clock change |
| Czechia | Prague: 28 Mar 2027 02:00 to 03:00 Forward; Prague: 31 Oct 2027 03:00 to 02:00 Back |
| Denmark | Copenhagen: 28 Mar 2027 02:00 to 03:00 Forward; Copenhagen: 31 Oct 2027 03:00 to 02:00 Back |
| Egypt | Cairo: 30 Apr 2027 00:00 to 01:00 Forward; Cairo: 29 Oct 2027 00:00 to 28 Oct 2027 23:00 Back |
| Finland | Helsinki: 28 Mar 2027 03:00 to 04:00 Forward; Helsinki: 31 Oct 2027 04:00 to 03:00 Back |
| France | Paris: 28 Mar 2027 02:00 to 03:00 Forward; Paris: 31 Oct 2027 03:00 to 02:00 Back |
| Germany | Berlin and Munich: 28 Mar 2027 02:00 to 03:00 Forward; Berlin and Munich: 31 Oct 2027 03:00 to 02:00 Back |
| Greece | Athens: 28 Mar 2027 03:00 to 04:00 Forward; Athens: 31 Oct 2027 04:00 to 03:00 Back |
| Hong Kong | No clock change |
| Hungary | Budapest: 28 Mar 2027 02:00 to 03:00 Forward; Budapest: 31 Oct 2027 03:00 to 02:00 Back |
| Iceland | No clock change |
| India | No clock change |
| Indonesia | No clock change |
| Iran | No clock change |
| Ireland | Dublin: 28 Mar 2027 01:00 to 02:00 Forward; Dublin: 31 Oct 2027 02:00 to 01:00 Back |
| Israel | Jerusalem: 26 Mar 2027 02:00 to 03:00 Forward; Jerusalem: 31 Oct 2027 02:00 to 01:00 Back |
| Italy | Rome and Milan: 28 Mar 2027 02:00 to 03:00 Forward; Rome and Milan: 31 Oct 2027 03:00 to 02:00 Back |
| Japan | No clock change |
| Kenya | No clock change |
| Malaysia | No clock change |
| Mexico | No clock change |
| Morocco | No clock change |
| Netherlands | Amsterdam: 28 Mar 2027 02:00 to 03:00 Forward; Amsterdam: 31 Oct 2027 03:00 to 02:00 Back |
| New Zealand | Auckland: 4 Apr 2027 03:00 to 02:00 Back; Auckland: 26 Sep 2027 02:00 to 03:00 Forward |
| Nigeria | No clock change |
| Norway | Oslo: 28 Mar 2027 02:00 to 03:00 Forward; Oslo: 31 Oct 2027 03:00 to 02:00 Back |
| Pakistan | No clock change |
| Peru | No clock change |
| Philippines | No clock change |
| Poland | Warsaw: 28 Mar 2027 02:00 to 03:00 Forward; Warsaw: 31 Oct 2027 03:00 to 02:00 Back |
| Portugal | Lisbon: 28 Mar 2027 01:00 to 02:00 Forward; Lisbon: 31 Oct 2027 02:00 to 01:00 Back |
| Qatar | No clock change |
| Romania | Bucharest: 28 Mar 2027 03:00 to 04:00 Forward; Bucharest: 31 Oct 2027 04:00 to 03:00 Back |
| Russia | No clock change |
| Saudi Arabia | No clock change |
| Singapore | No clock change |
| South Africa | No clock change |
| South Korea | No clock change |
| Spain | Madrid and Barcelona: 28 Mar 2027 02:00 to 03:00 Forward; Madrid and Barcelona: 31 Oct 2027 03:00 to 02:00 Back |
| Sweden | Stockholm: 28 Mar 2027 02:00 to 03:00 Forward; Stockholm: 31 Oct 2027 03:00 to 02:00 Back |
| Switzerland | Zurich: 28 Mar 2027 02:00 to 03:00 Forward; Zurich: 31 Oct 2027 03:00 to 02:00 Back |
| Thailand | No clock change |
| Turkey | No clock change |
| Ukraine | Kyiv: 28 Mar 2027 03:00 to 04:00 Forward; Kyiv: 31 Oct 2027 04:00 to 03:00 Back |
| United Arab Emirates | No clock change |
| United Kingdom | England (London and Manchester), Scotland (Edinburgh), and Northern Ireland (Belfast): 28 Mar 2027 01:00 to 02:00 Forward; England (London and Manchester), Scotland (Edinburgh), and Northern Ireland (Belfast): 31 Oct 2027 02:00 to 01:00 Back |
| United States | New York, District of Columbia (Washington), and Florida (Miami): 14 Mar 2027 02:00 to 03:00 Forward; New York, District of Columbia (Washington), and Florida (Miami): 7 Nov 2027 02:00 to 01:00 Back; Illinois (Chicago) and Texas (Houston): 14 Mar 2027 02:00 to 03:00 Forward; Illinois (Chicago) and Texas (Houston): 7 Nov 2027 02:00 to 01:00 Back; Colorado (Denver): 14 Mar 2027 02:00 to 03:00 Forward; Colorado (Denver): 7 Nov 2027 02:00 to 01:00 Back; California (Los Angeles): 14 Mar 2027 02:00 to 03:00 Forward; California (Los Angeles): 7 Nov 2027 02:00 to 01:00 Back; Alaska (Anchorage): 14 Mar 2027 02:00 to 03:00 Forward; Alaska (Anchorage): 7 Nov 2027 02:00 to 01:00 Back |
| Vietnam | No clock change |