| Southend-on-Sea Zürs | Central European Time | -01:00 |
| Southend-on-Sea Parisot | Central European Time | -01:00 |
| Southend-on-Sea Zweisimmen | Central European Time | -01:00 |
| Southend-on-Sea Paris | Central European Time | -01:00 |
| Southend-on-Sea Zwingenberg | Central European Time | -01:00 |
| Southend-on-Sea Paris | Central European Time | -01:00 |
| Southend-on-Sea Zwiefalten | Central European Time | -01:00 |
| Southend-on-Sea Pasaje Canton | Ecuador Time | 05:00 |
| Southend-on-Sea Parowan | Mountain Time | 07:00 |
| Southend-on-Sea Parnwell | United Kingdom Time | 00:00 |
| Southend-on-Sea Parrish | Eastern Time | 05:00 |
| Southend-on-Sea Radoľa | Central European Time | -01:00 |
| Southend-on-Sea Rafah | Eastern European Time | -02:00 |
| Southend-on-Sea Raeford | Eastern Time | 05:00 |
| Southend-on-Sea Raf Raf | Central European Time | -01:00 |
| Southend-on-Sea Radda in Chianti | Central European Time | -01:00 |
| Southend-on-Sea Rạch Giá | Indochina Time | -07:00 |
| Southend-on-Sea Rạch Giá | Indochina Time | -07:00 |
| Southend-on-Sea Pont-Sainte-Marie | Central European Time | -01:00 |
| Southend-on-Sea Ponte do Rol | Western European Time | 00:00 |
| Southend-on-Sea Ponte Fabbrica | Central European Time | -01:00 |
| Southend-on-Sea Ponte Nizza | Central European Time | -01:00 |
| Southend-on-Sea Pontian District | Malaysia Time | -08:00 |
| Southend-on-Sea Pontresina | Central European Time | -01:00 |
| Southend-on-Sea Ponte Tresa | Central European Time | -01:00 |
| Southend-on-Sea Rakovica | Central European Time | -01:00 |
| Southend-on-Sea Ram Nagar | India Standard Time | -05:30 |
| Southend-on-Sea Rajapalayam | India Standard Time | -05:30 |
| Southend-on-Sea Rajosana | India Standard Time | -05:30 |
| Southend-on-Sea Rahim Yar Khan | Pakistan Time | -05:00 |
| Southend-on-Sea Raglan | New Zealand Time | -13:00 |
| Southend-on-Sea Rahovic | Central European Time | -01:00 |
| Southend-on-Sea Rainsville | Central Time | 06:00 |
| Southend-on-Sea Rajadewali | Pakistan Time | -05:00 |
| Southend-on-Sea Zahara de los Atunes | Central European Time | -01:00 |
| Southend-on-Sea Yvoir | Central European Time | -01:00 |
| Southend-on-Sea Yzeure | Central European Time | -01:00 |
| Southend-on-Sea Zachary | Central Time | 06:00 |