| Countries and Regions | Abbreviation | phone number | equation of time |
|---|---|---|---|
| Angola | AO | 244 | -7 |
| Afghanistan | AF | 93 | 0 |
| Albania | AL | 355 | -7 |
| Algeria | DZ | 213 | -8 |
| Andorra | AD | 376 | -8 |
| Anguilla | AI | 1264 | -12 |
| Antigua and Barbuda | AG | 1268 | -12 |
| Argentina | AR | 54 | -11 |
| Armenia | AM | 374 | -6 |
| Ascension | AC | 247 | -8 |
| Australia | AU | 61 | +2 |
| Austria | AT | 43 | -7 |
| Azerbaijan | AZ | 994 | -5 |
| Bahamas | BS | 1242 | -13 |
| Bahrain | BH | 973 | -5 |
| Bangladesh | BD | 880 | -2 |
| Barbados | BB | 1246 | -12 |
| Belarus | BY | 375 | -6 |
| Belgium | BE | 32 | -7 |
| Belize | BZ | 501 | -14 |
| Benin | BJ | 229 | -7 |
| Bermuda Is. | BM | 1441 | -12 |
| Bolivia | BO | 591 | -12 |
| Botswana | BW | 267 | -6 |
| Brazil | BR | 55 | -11 |
| Brunei | BN | 673 | 0 |
| Bulgaria | BG | 359 | -6 |
| Burkina-faso | BF | 226 | -8 |
| Burma | MM | 95 | -1.3 |
| Burundi | BI | 257 | -6 |
| Cameroon | CM | 237 | -7 |
| Canada | CA | 1 | -13 |
| Cayman Is. | KY | 1345 | -13 |
| Central African Republic | CF | 236 | -7 |
| Chad | TD | 235 | -7 |
| Chile | CL | 56 | -13 |
| China | CN | 86 | 0 |
| Colombia | CO | 57 | 0 |
| Congo | CG | 242 | -7 |
| Cook Is. | CK | 682 | -18.3 |
| Costa Rica | CR | 506 | -14 |
| Cuba | CU | 53 | -13 |
| Cyprus | CY | 357 | -6 |
| Czech | CZ | 420 | -7 |
| Denmark | DK | 45 | -7 |
| Djibouti | DJ | 253 | -5 |
| Dominica Rep. | DO | 1890 | -13 |
| Ecuador | EC | 593 | -13 |
| Egypt | EG | 20 | -6 |
| EI Salvador | SV | 503 | -14 |
| Estonia | EE | 372 | -5 |
| Ethiopia | ET | 251 | -5 |
| Fiji | FJ | 679 | +4 |
| Finland | FI | 358 | -6 |
| France | FR | 33 | -8 |
| French Guiana | GF | 594 | -12 |
| Gabon | GA | 241 | -7 |
| Gambia | GM | 220 | -8 |
| Georgia | GE | 995 | 0 |
| Germany | DE | 49 | -7 |
| Ghana | GH | 233 | -8 |
| Gibraltar | GI | 350 | -8 |
| Greece | GR | 30 | -6 |
| Grenada | GD | 1809 | -14 |
| Guam | GU | 1671 | +2 |
| Guatemala | GT | 502 | -14 |
| Guinea | GN | 224 | -8 |
| Guyana | GY | 592 | -11 |
| Haiti | HT | 509 | -13 |
| Honduras | HN | 504 | -14 |
| Hongkong | HK | 852 | 0 |
| Hungary | HU | 36 | -7 |
| Iceland | IS | 354 | -9 |
| India | IN | 91 | -2.3 |
| Indonesia | ID | 62 | -0.3 |
| Iran | IR | 98 | -4.3 |
| Iraq | IQ | 964 | -5 |
| Ireland | IE | 353 | -4.3 |
| Israel | IL | 972 | -6 |
| Italy | IT | 39 | -7 |
| Ivory Coast | KT | 225 | -6 |
| Jamaica | JM | 1876 | -12 |
| Japan | JP | 81 | +1 |
| Jordan | JO | 962 | -6 |
| Kampuchea （Cambodia） | KH | 855 | -1 |
| Kazakstan | KZ | 327 | -5 |
| Kenya | KE | 254 | -5 |
| Korea | KR | 82 | +1 |
| Kuwait | KW | 965 | -5 |
| Kyrgyzstan | KG | 331 | -5 |
| Laos | LA | 856 | -1 |
| Latvia | LV | 371 | -5 |
| Lebanon | LB | 961 | -6 |
| Lesotho | LS | 266 | -6 |
| Liberia | LR | 231 | -8 |
| Libya | LY | 218 | -6 |
| Liechtenstein | LI | 423 | -7 |
| Lithuania | LT | 370 | -5 |
| Luxembourg | LU | 352 | -7 |
| Macao | MO | 853 | 0 |
| Madagascar | MG | 261 | -5 |
| Malawi | MW | 265 | -6 |
| Malaysia | MY | 60 | -0.5 |
| Maldives | MV | 960 | -7 |
| Mali | ML | 223 | -8 |
| Malta | MT | 356 | -7 |
| Mariana Is. | 1670 | +1 | |
| Martinique | MQ | 596 | -12 |
| Mauritius | MU | 230 | -4 |
| Mexico | MX | 52 | -15 |
| Moldova | MD | 373 | -5 |
| Monaco | MC | 377 | -7 |
| Mongolia | MN | 976 | 0 |
| Montserrat Is. | MS | 1664 | -12 |
| Morocco | MA | 212 | -6 |
| Mozambique | MZ | 258 | -6 |
| Namibia | NA | 264 | -7 |
| Nauru | NR | 674 | +4 |
| Nepal | NP | 977 | -2.3 |
| Netheriands Antilles | AN | 599 | -12 |
| Netherlands | NL | 31 | -7 |
| New Zealand | NZ | 64 | +4 |
| Nicaragua | NI | 505 | -14 |
| Niger | NE | 227 | -8 |
| Nigeria | NG | 234 | -7 |
| North Korea | KP | 850 | +1 |
| Norway | NO | 47 | -7 |
| Oman | OM | 968 | -4 |
| Pakistan | PK | 92 | -2.3 |
| Panama | PA | 507 | -13 |
| Papua New Cuinea | PG | 675 | +2 |
| Paraguay | PY | 595 | -12 |
| Peru | PE | 51 | -13 |
| Philippines | PH | 63 | 0 |
| Poland | PL | 48 | -7 |
| French Polynesia | PF | 689 | +3 |
| Portugal | PT | 351 | -8 |
| Puerto Rico | PR | 1787 | -12 |
| Qatar | QA | 974 | -5 |
| Reunion | RE | 262 | -4 |
| Romania | RO | 40 | -6 |
| Russia | RU | 7 | -5 |
| Saint Lueia | LC | 1758 | -12 |
| Saint Vincent | VC | 1784 | -12 |
| Samoa Eastern | AS | 684 | -19 |
| Samoa Western | WS | 685 | -19 |
| San Marino | SM | 378 | -7 |
| Sao Tome and Principe | ST | 239 | -8 |
| Saudi Arabia | SA | 966 | -5 |
| Senegal | SN | 221 | -8 |
| Seychelles | SC | 248 | -4 |
| Sierra Leone | SL | 232 | -8 |
| Singapore | SG | 65 | +0.3 |
| Slovakia | SK | 421 | -7 |
| Slovenia | SI | 386 | -7 |
| Solomon Is. | SB | 677 | +3 |
| Somali | SO | 252 | -5 |
| South Africa | ZA | 27 | -6 |
| Spain | ES | 34 | -8 |
| Sri Lanka | LK | 94 | 0 |
| St.Lucia | LC | 1758 | -12 |
| St.Vincent | VC | 1784 | -12 |
| Sudan | SD | 249 | -6 |
| South Sudan | SS | 211 | -6 |
| Suriname | SR | 597 | -11.3 |
| Swaziland | SZ | 268 | -6 |
| Sweden | SE | 46 | -7 |
| Switzerland | CH | 41 | -7 |
| Syria | SY | 963 | -6 |
| Taiwan | TW | 886 | 0 |
| Tajikstan | TJ | 992 | -5 |
| Tanzania | TZ | 255 | -5 |
| Thailand | TH | 66 | -1 |
| Togo | TG | 228 | -8 |
| Tonga | TO | 676 | +4 |
| Trinidad and Tobago | TT | 1809 | -12 |
| Tunisia | TN | 216 | -7 |
| Turkey | TR | 90 | -6 |
| Turkmenistan | TM | 993 | -5 |
| Uganda | UG | 256 | -5 |
| Ukraine | UA | 380 | -5 |
| United Arab Emirates | AE | 971 | -4 |
| United Kiongdom | GB | 44 | -8 |
| United States of America | US | 1 | -13 |
| Uruguay | UY | 598 | -10.3 |
| Uzbekistan | UZ | 233 | -5 |
| Venezuela | VE | 58 | -12.3 |
| Vietnam | VN | 84 | -1 |
| Yemen | YE | 967 | -5 |
| Yugoslavia | YU | 381 | -7 |
| Zimbabwe | ZW | 263 | -6 |
| Congo-kinshasa | CD | 243 | -7 |
| Zambia | ZM | 260 | -6 |