| Country | Time zone |
 international code |
Electricity supply and socket type |
Visa rq for UK passport holder / Passport validity (note 1) |
| Australia | Eastern: GMT + 10hrs Central: GMT + 9.5hrs Western: GMT + 8hrs |
61 |
240V 50Hz  |
Yes (note 2) |
| Brazil | Brazil STD time: GMT - 3hrs Central Brazil time: GMT - 4hrs Acre STD time: GMT - 5hrs |
55 |
Rio, Sao Paolo: 127V Other areas: 220V 50Hz    |
No |
| China | GMT + 8hrs |
86 |
220V 50Hz   |
Yes |
| Egypt | GMT + 2hrs |
20 |
220V 50Hz |
Yes 2 months |
| France | GMT + 1hr Central European time, CET) |
33 |
230V 50Hz |
No |
| Greece | GMT + 2hrs |
30 |
220V 50Hz |
No |
| Hong Kong | GMT + 8hrs |
852 |
220V 50Hz  (as UK) |
No. 1 month |
| Italy | CET |
39 |
230V 50Hz |
No |
| Japan | GMT + 9hrs |
81 |
100V 50Hz |
No |
| Kazakhstan | GMT + 5hrs GMT + 6hrs |
7 (as Russia) |
220V 50Hz |
Yes 6 months |
| Russia | GMT + 2hrs, +3hrs(eg. Moscow), +4hrs, +5hrs, +8hrs, +10hrs, +12hrs |
7 |
220V 50Hz |
Yes |
| Singapore | GMT + 8hrs |
65 |
230V 50Hz |
No. 6 months |
| South Korea | GMT + 9hrs |
82 |
220V 60Hz |
No |
| Thailand | GMT + 7hrs |
66 |
220V 50Hz |
No. 6 months |
| Turkey | GMT + 2hrs |
90 |
220V 50Hz |
No |
| United Arab Emirates | GMT + 4hrs |
971 |
220V 50Hz |
Yes 3 months |
| USA | Eastern time: GMT - 5hrs Central time: GMT - 6hrs Mountain time: GMT - 7hrs Pacific STD time: GMT - 8hrs |
1 |
110V 60Hz |
No (note 3) |
Note 1: The length of time a UK passport must be valid after date of stay. If none mentioned, passport must be valid for the period of intended stay.
Note 2: or Electronic Travel Authority (ETA)
Note 3: Holders of UK passports with the endorsement British Subject, British Dependent Territories Citizen, British Overseas Citizen or British National (Overseas) Citizen do not qualify for visa exemption.