| Flag | Code | Country | Time Difference (GMT) | Group | Comment | Internet Code |
 | 40 | ROMANIA | 2 | EU, NATO | | ro |
 | 41 | SWITZERLAND (Confederation of) | 1 | | | ch |
 | 420 | CZECH REPUBLIC | 1 | EU, NATO | | cz |
 | 421 | SLOVAKIA | 1 | EU, NATO | | sk |
 | 423 | LIECHTENSTEIN (Principality of) | 1 | | | li |
 | 43 | AUSTRIA | 1 | EU | | at |
 | 44 | Britain | 0 | UK | England - Wales | uk |
 | 44 | Alderney | 0 | UKD, CI | | gg |
| 44 | Channel Islands | 0 | UKD | Jersey - Guernsey - Alderney - Herm - Sark | |
 | 44 | Herm | 0 | UKD, CI | | gg |
 | 44 | England | 0 | UK | | uk |
 | 44 | Northern Ireland | 0 | UK | Ulster | uk |
| 44 | Great Britain | 0 | UK | England-Scotland-Wales | uk |
 | 44 | Guernsey | 0 | UKD, CI | | gg |
 | 44 | Isle of Man | 0 | UKD | Manx | im |
 | 44 | Jersey | 0 | UKD, CI | | je |
 | 44 | Sark | 0 | UKD, CI | | gg |
 | 44 | Scotland | 0 | UK | | uk |
 | 44 | UNITED KINGDOM of GREAT BRITAIN and NORTHERN IRELAND | 0 | EU, NATO, UK, BCW | England - Scotland - Wales - Northern Ireland | uk |
 | 44 | Wales | 0 | UK | | uk |
| 44/353 | British Isles | 0 | | England - Scotland - Wales - Ireland | |
 | 45 | DENMARK | 1 | EU, NATO | | dk |
 | 46 | SWEDEN | 1 | EU | | se |
 | 47 | NORWAY | 1 | NATO | | no |
 | 48 | POLAND (Republic of) | 1 | EU, NATO | | pl |
 | 49 | GERMANY (Federal Republic of) | 1 | EU, NATO | | de |