! Currently BST (British Summer Time) is observed in the United Kingdom and IST (Irish Summer Time) is observed in Ireland in place of GMT.
| GMT - Greenwich Mean Time (6 hours behind OMST) | 2:20 AM Wednesday, September 27 Offset: UTC/GMT |
| OMST - Omsk Standard Time (6 hours ahead of GMT / UTC) | 8:20 AM Wednesday, September 27 Offset: UTC+6 |