| Merthyr Tydfil Time | CLST | |
|---|---|---|
| 04:00 AM Wednesday Merthyr Tydfil Time (GMT) | ↔ | 01:00 AM Wednesday CLST |
| 05:00 AM Wednesday Merthyr Tydfil Time (GMT) | ↔ | 02:00 AM Wednesday CLST |
| 06:00 AM Wednesday Merthyr Tydfil Time (GMT) | ↔ | 03:00 AM Wednesday CLST |
| 07:00 AM Wednesday Merthyr Tydfil Time (GMT) | ↔ | 04:00 AM Wednesday CLST |
| 08:00 AM Wednesday Merthyr Tydfil Time (GMT) | ↔ | 05:00 AM Wednesday CLST |