| Watertown Rio Verde | Brasilia Time | -01:00 |
| Watertown Ripon | Pacific Time | 03:00 |
| Watertown Ripley | Eastern Time | 00:00 |
| Watertown River Forest | Central Time | 01:00 |
| Watertown San Donnino | Central European Time | -06:00 |
| Watertown San Diego | Pacific Time | 03:00 |
| Watertown San Diego | Pacific Time | 03:00 |
| Watertown San Diego | Venezuela Time | 00:00 |
| Watertown San Cristóbal de La Laguna | Western European Time | -05:00 |
| Watertown San Clemente | Central European Time | -06:00 |
| Watertown Pulaski | Eastern Time | 00:00 |
| Watertown Pulau Carey | Malaysia Time | -12:00 |
| Watertown Punchbowl | Eastern Australia Time | -14:00 |
| Watertown Punganur | India Standard Time | -09:30 |
| Watertown Pune | India Standard Time | -09:30 |
| Watertown Pune | India Standard Time | -09:30 |
| Watertown Pune | India Standard Time | -09:30 |
| Watertown Pune | India Standard Time | -09:30 |
| Watertown Pune | India Standard Time | -09:30 |
| Watertown Puerto Lumbreras | Central European Time | -06:00 |
| Watertown Puerto Morelos | Eastern Time | 01:00 |
| Watertown Pukalani | Hawaii-Aleutian Time | 06:00 |
| Watertown Pukekohe | New Zealand Time | -16:00 |
| Watertown Puerto Vallarta | Central Time | 01:00 |
| Watertown Puerto Viejo de Talamanca | Central Time | 02:00 |
| Watertown Punjaipugalur | India Standard Time | -09:30 |
| Watertown Punta Gorda | Central Time | 02:00 |
| Watertown Rietheim-Weilheim | Central European Time | -06:00 |
| Watertown Rincón de Soto | Central European Time | -06:00 |
| Watertown Rincon | Atlantic Time | 00:00 |
| Watertown Rillaar | Central European Time | -06:00 |
| Watertown Ringwood | Eastern Australia Time | -14:00 |
| Watertown Ringgold | Eastern Time | 00:00 |
| Watertown Rincon | Eastern Time | 00:00 |
| Watertown Río Grande | Atlantic Time | 00:00 |
| Watertown Rio Grande | Eastern Time | 00:00 |
| Watertown Rio Grande City | Central Time | 01:00 |
| Watertown Pigeon Forge | Eastern Time | 00:00 |
| Watertown Pikeville | Eastern Time | 00:00 |
| Watertown Piedralaves | Central European Time | -06:00 |
| Watertown Pieterburen | Central European Time | -06:00 |
| Watertown Pietralunga | Central European Time | -06:00 |
| Watertown Picton | New Zealand Time | -16:00 |
| Watertown Picton | Eastern Australia Time | -14:00 |
| Watertown Pictou | Atlantic Time | -01:00 |
| Watertown Piddlehinton | United Kingdom Time | -05:00 |
| Watertown Pazhayangadi | India Standard Time | -09:30 |
| Watertown Peachtree Corners | Eastern Time | 00:00 |
| Watertown Pearce | Eastern Australia Time | -14:00 |
| Watertown Pawleys Island | Eastern Time | 00:00 |