| Riverhead South Padre Island | Central Time | 01:00 |
| Riverhead South Park Township | Eastern Time | 00:00 |
| Riverhead South Molton | United Kingdom Time | -05:00 |
| Riverhead South Lancaster | Eastern Time | 00:00 |
| Riverhead South Granville | Eastern Australia Time | -14:00 |
| Riverhead South Fallsburg | Eastern Time | 00:00 |
| Riverhead South Fremantle | Western Australia Time | -12:00 |
| Riverhead South Jakarta | Western Indonesia Time | -11:00 |
| Riverhead South Hobart | Eastern Australia Time | -14:00 |
| Riverhead South Hill | Eastern Time | 00:00 |
| Riverhead South Lismore | Eastern Australia Time | -14:00 |
| Riverhead South Melbourne | Eastern Australia Time | -14:00 |
| Riverhead South Miami | Eastern Time | 00:00 |
| Riverhead South Kilvington | United Kingdom Time | -05:00 |
| Riverhead South Kingstown | Eastern Time | 00:00 |
| Riverhead South Kuta | Central Indonesia Time | -12:00 |
| Riverhead Shirakawa | Japan Time | -13:00 |
| Riverhead Shinjuku | Japan Time | -13:00 |
| Riverhead Shippagan | Atlantic Time | -01:00 |
| Riverhead Shipshewana | Eastern Time | 00:00 |
| Riverhead Shirahama | Japan Time | -13:00 |
| Riverhead Wohratal | Central European Time | -06:00 |
| Riverhead Wolfschlugen | Central European Time | -06:00 |
| Riverhead Wolfville | Atlantic Time | -01:00 |
| Riverhead Wolkersdorf im Weinviertel | Central European Time | -06:00 |
| Riverhead Wommelgem | Central European Time | -06:00 |
| Riverhead Wolverton | United Kingdom Time | -05:00 |
| Riverhead Zuidhorn | Central European Time | -06:00 |
| Riverhead Zuidoostbeemster | Central European Time | -06:00 |
| Riverhead Zoutelande | Central European Time | -06:00 |
| Riverhead Zugliano | Central European Time | -06:00 |
| Riverhead Woodbridge | Eastern Time | 00:00 |
| Riverhead Woodbridge Township | Eastern Time | 00:00 |
| Riverhead Woodcroft | Central Australia Time | -13:30 |
| Riverhead Zürs | Central European Time | -06:00 |
| Riverhead Zwingenberg | Central European Time | -06:00 |
| Riverhead Zwiefalten | Central European Time | -06:00 |
| Riverhead Zweisimmen | Central European Time | -06:00 |