UTC ± 00: 00 is the time:
Coordinated Universal Time (UTC), based on world time.
Western European Time (Ireland, Portugal and UK).
Western European Time (in the northern part of the world in winter only)
Canary Islands; observes European Union DST rules
Isle of Man
Portugal (with the exception of the Azores, which use UTC − 01 with DST)
United Kingdom (GMT / BST)
Summer Time (in the northern part of the world in summer only)
Greenland - Ittoqqortoormiit (Scoresbysund) region
Portugal - Azores only
As standard period (full year)
São Tomé and Príncipe
region of Danmarkshavn
Saint Helena, Ascension Island and Tristan da Cunha (to UK)
Some bases in Antarctica. See also Antarctica Weather