| Country Name | ISD Code | Time Difference |
| Democratic Republic of Congo (Zaire) | 243 | GMT+02:00 |
| Denmark | 45 | GMT+01:00 |
| Diego Garcia | 246 | GMT+05:00 |
| Djibouti | 253 | GMT+03:00 |
| Dominica Islands | 767 | GMT-04:00 |
| Dominican Republic | 809 | GMT-04:00 |
| Ecuador | 593 | GMT-05:00 |
| Egypt | 20 | GMT+02:00 |
| El Salvador | 503 | GMT-06:00 |
| Equatorial Guinea | 240 | GMT+01:00 |