| West Mifflin Parkside | Central Australia Time | -14:30 |
| West Mifflin Parga | Eastern European Time | -06:00 |
| West Mifflin Pargas | Eastern European Time | -06:00 |
| West Mifflin Park City | Mountain Time | 02:00 |
| West Mifflin Parisot | Central European Time | -05:00 |
| West Mifflin Paris | Central European Time | -05:00 |
| West Mifflin Paris | Central European Time | -05:00 |
| West Mifflin Pasaje Canton | Ecuador Time | 01:00 |
| West Mifflin Parowan | Mountain Time | 02:00 |
| West Mifflin Parnwell | United Kingdom Time | -04:00 |
| West Mifflin Parrish | Eastern Time | 00:00 |
| West Mifflin Radoľa | Central European Time | -05:00 |
| West Mifflin Rafah | Eastern European Time | -06:00 |
| West Mifflin Raeford | Eastern Time | 00:00 |
| West Mifflin Raf Raf | Central European Time | -05:00 |
| West Mifflin Radda in Chianti | Central European Time | -05:00 |
| West Mifflin Rạch Giá | Indochina Time | -11:00 |
| West Mifflin Rạch Giá | Indochina Time | -11:00 |
| West Mifflin Pont-Sainte-Marie | Central European Time | -05:00 |
| West Mifflin Ponte do Rol | Western European Time | -04:00 |
| West Mifflin Ponte Fabbrica | Central European Time | -05:00 |
| West Mifflin Ponte Nizza | Central European Time | -05:00 |
| West Mifflin Pontian District | Malaysia Time | -12:00 |
| West Mifflin Pontresina | Central European Time | -05:00 |
| West Mifflin Ponte Tresa | Central European Time | -05:00 |
| West Mifflin Rakovica | Central European Time | -05:00 |
| West Mifflin Ram Nagar | India Standard Time | -09:30 |
| West Mifflin Rajapalayam | India Standard Time | -09:30 |
| West Mifflin Rajosana | India Standard Time | -09:30 |
| West Mifflin Rahim Yar Khan | Pakistan Time | -09:00 |
| West Mifflin Raglan | New Zealand Time | -17:00 |
| West Mifflin Rahovic | Central European Time | -05:00 |
| West Mifflin Rainsville | Central Time | 01:00 |
| West Mifflin Rajadewali | Pakistan Time | -09:00 |
| West Mifflin Zahara de los Atunes | Central European Time | -05:00 |
| West Mifflin Yvoir | Central European Time | -05:00 |
| West Mifflin Yzeure | Central European Time | -05:00 |
| West Mifflin Zachary | Central Time | 01:00 |