| Grenchen Pictou | Atlantic Time | 05:00 |
| Grenchen Yarraville | Eastern Australia Time | -08:00 |
| Grenchen New Port Richey | Eastern Time | 06:00 |
| Grenchen North Wales | Eastern Time | 06:00 |
| Grenchen Knightdale | Eastern Time | 06:00 |
| Grenchen Watson | Eastern Australia Time | -08:00 |
| Grenchen Vijapadi | India Standard Time | -03:30 |
| Grenchen North Yarmouth | Eastern Time | 06:00 |
| Grenchen Piddlehinton | United Kingdom Time | 01:00 |
| Grenchen Wattwil | Central European Time | 00:00 |
| Grenchen New Richmond | Central Time | 07:00 |
| Grenchen Northbridge | Eastern Australia Time | -08:00 |
| Grenchen Knoxfield | Eastern Australia Time | -08:00 |
| Grenchen Waverley | Eastern Australia Time | -08:00 |
| Grenchen Vieux-Mareuil | Central European Time | 00:00 |
| Grenchen North Truro | Eastern Time | 06:00 |
| Grenchen Piedralaves | Central European Time | 00:00 |
| Grenchen Waupaca | Central Time | 07:00 |
| Grenchen New Lexington | Eastern Time | 06:00 |
| Grenchen North Strathfield | Eastern Australia Time | -08:00 |
| Grenchen Ko Chang | Indochina Time | -05:00 |
| Grenchen Wauchope | Eastern Australia Time | -08:00 |
| Grenchen Turin | Central European Time | 00:00 |
| Grenchen North Sydney | Eastern Australia Time | -08:00 |
| Grenchen Pieterburen | Central European Time | 00:00 |
| Grenchen Watkins Glen | Eastern Time | 06:00 |
| Grenchen New Milton | Eastern Time | 06:00 |
| Grenchen North Syracuse | Eastern Time | 06:00 |
| Grenchen Ko Pha-ngan | Indochina Time | -05:00 |
| Grenchen Watkinsville | Eastern Time | 06:00 |
| Grenchen Turawa | Central European Time | 00:00 |
| Grenchen Norway | Eastern Time | 06:00 |
| Grenchen Pietralunga | Central European Time | 00:00 |
| Grenchen Watertown | Eastern Time | 06:00 |
| Grenchen New Minas | Atlantic Time | 05:00 |
| Grenchen Northwood | Eastern Time | 06:00 |
| Grenchen Ko Phra Thong | Indochina Time | -05:00 |
| Grenchen Waterloo | United Kingdom Time | 01:00 |
| Grenchen Vieques | Atlantic Time | 06:00 |
| Grenchen Northwood | United Kingdom Time | 01:00 |
| Grenchen Pimpalgaon Baswant | India Standard Time | -03:30 |
| Grenchen Wayne | Eastern Time | 06:00 |
| Grenchen New Paltz | Eastern Time | 06:00 |
| Grenchen Northvale | Eastern Time | 06:00 |
| Grenchen Kittery | Eastern Time | 06:00 |
| Grenchen Wavre | Central European Time | 00:00 |
| Grenchen Vidor | Central Time | 07:00 |
| Grenchen North Melbourne | Eastern Australia Time | -08:00 |
| Grenchen Pillayarkuppam | India Standard Time | -03:30 |
| Grenchen Waynesville | Eastern Time | 06:00 |