| Ireland Bosnia and Herzegovina | Central European Time | -01:00 |
| Ireland Costa Rica | Central Time | 06:00 |
| Ireland Croatia | Central European Time | -01:00 |
| Ireland New Zealand | New Zealand Time | -13:00 |
| Ireland Lebanon | Eastern European Time | -02:00 |
| Ireland Puerto Rico | Argentina Time | 03:00 |
| Ireland Liberia | Greenwich Mean Time | 00:00 |
| Ireland Uruguay | Uruguay Time | 03:00 |
| Ireland Panama | Central Time | 06:00 |
| Ireland Mauritania | Greenwich Mean Time | 00:00 |
| Ireland Congo | West Africa Time | -01:00 |
| Ireland Albania | Central European Time | -01:00 |
| Ireland Armenia | Armenia Time | -04:00 |
| Ireland Lithuania | Eastern European Time | -02:00 |
| Ireland Jamaica | Eastern Time | 05:00 |
| Ireland Kuwait | Arabian Time | -03:00 |
| Ireland Latvia | Eastern European Time | -02:00 |
| Ireland Namibia | Central Africa Time | -02:00 |
| Ireland Botswana | Central Africa Time | -02:00 |
| Ireland Slovenia | Central European Time | -01:00 |
| Ireland Lesotho | South Africa Standard Time | -02:00 |
| Ireland The Gambia | Eastern Australia Time | -11:00 |
| Ireland Guinea-Bissau | Greenwich Mean Time | 00:00 |
| Ireland Gabon | West Africa Time | -01:00 |
| Ireland Swaziland | South Africa Standard Time | -02:00 |
| Ireland Mauritius | Mauritius Time | -04:00 |
| Ireland Estonia | Eastern European Time | -02:00 |
| Ireland Timor-Leste | East Timor Time | -09:00 |
| Ireland Equatorial Guinea | West Africa Time | -01:00 |
| Ireland Fiji | Fiji Time | -12:00 |
| Ireland Qatar | Arabian Time | -03:00 |
| Ireland Reunion | Reunion Time | -04:00 |
| Ireland Comoros | East Africa Time | -03:00 |
| Ireland Guyana | Guyana Time | 04:00 |
| Ireland Djibouti | East Africa Time | -03:00 |
| Ireland Bahrain | Arabian Time | -03:00 |
| Ireland Bhutan | Bhutan Time | -06:00 |
| Ireland Solomon Islands | Solomon Islands Time | -11:00 |
| Ireland Cape Verde | Cape Verde Time | 01:00 |
| Ireland Luxembourg | Central European Time | -01:00 |
| Ireland Suriname | Suriname Time | 03:00 |
| Ireland Guadeloupe | Atlantic Time | 04:00 |
| Ireland Martinique | Atlantic Time | 04:00 |
| Ireland Brunei | Brunei Darussalam Time | -08:00 |
| Ireland Belize | Central Time | 06:00 |
| Ireland The Bahamas | Eastern Time | 05:00 |
| Ireland Barbados | Atlantic Time | 04:00 |
| Ireland French Polynesia | Tahiti Time | 10:00 |
| Ireland French Guiana | French Guiana Time | 03:00 |
| Ireland Samoa | Apia Time | -13:00 |