| Kostroma Oka | Eastern Time | 07:00 |
| Kostroma Ceelbuur | East Africa Time | 00:00 |
| Kostroma Törökbálint | Central European Time | 01:00 |
| Kostroma Murrumbateman | Eastern Australia Time | -07:00 |
| Kostroma Kangaroo Valley | Eastern Australia Time | -07:00 |
| Kostroma Victoria Park | Western Australia Time | -05:00 |
| Kostroma Genting Highlands | Malaysia Time | -05:00 |
| Kostroma Quanzhou | China Time | -05:00 |
| Kostroma Pāhoa | Hawaii-Aleutian Time | 13:00 |
| Kostroma Butamwa | Central Africa Time | 01:00 |
| Kostroma Tarfaya | Western European Time | 02:00 |
| Kostroma Miguelturra | Central European Time | 01:00 |
| Kostroma Jahra | Arabian Time | 00:00 |
| Kostroma West Chazy | Eastern Time | 07:00 |
| Kostroma Guildford | Eastern Australia Time | -07:00 |
| Kostroma Quiringuicharo | Central Time | 08:00 |
| Kostroma Oia | Eastern European Time | 00:00 |
| Kostroma Burwood | Eastern Australia Time | -07:00 |
| Kostroma Tappahannock | Eastern Time | 07:00 |
| Kostroma Milan | Central Time | 08:00 |
| Kostroma Jaigaon | India Standard Time | -02:30 |
| Kostroma West Bountiful | Mountain Time | 09:00 |
| Kostroma Gerik | Malaysia Time | -05:00 |
| Kostroma Quinns Rocks | Western Australia Time | -05:00 |
| Kostroma Ojai | Pacific Time | 10:00 |
| Kostroma Burwood East | Eastern Australia Time | -07:00 |
| Kostroma Tarascon | Central European Time | 01:00 |
| Kostroma Milano Marittima | Central European Time | 01:00 |
| Kostroma Jaimalwala Alias Pireana | India Standard Time | -02:30 |
| Kostroma West Bradley | United Kingdom Time | 02:00 |
| Kostroma Gering | Mountain Time | 09:00 |
| Kostroma Quinta do Conde | Western European Time | 02:00 |
| Kostroma Ohio | Eastern Time | 07:00 |
| Kostroma Buscate | Central European Time | 01:00 |
| Kostroma Toppenish | Pacific Time | 10:00 |
| Kostroma Milford on Sea | United Kingdom Time | 02:00 |
| Kostroma Jagannathpur | India Standard Time | -02:30 |
| Kostroma West Cape May | Eastern Time | 07:00 |
| Kostroma Georgina | Eastern Time | 07:00 |
| Kostroma Quintanar de la Orden | Central European Time | 01:00 |
| Kostroma Ohain | Central European Time | 01:00 |
| Kostroma Burtonsville | Eastern Time | 07:00 |
| Kostroma Topsham | United Kingdom Time | 02:00 |
| Kostroma Milford Charter Township | Eastern Time | 07:00 |
| Kostroma Jaggayyapet | India Standard Time | -02:30 |
| Kostroma West Columbia | Eastern Time | 07:00 |
| Kostroma Geraldine | New Zealand Time | -09:00 |
| Kostroma Quepos | Central Time | 09:00 |
| Kostroma Ogunquit | Eastern Time | 07:00 |
| Kostroma Bošnia | Moscow Time | 00:00 |