word | | Capital |
| ahead | Senegal | name: Dakar geographic coordinates: 14 40 N, 17 26 W time difference: UTC 0 (5 hours ahead of Washington, DC during Standard Time) |
| ahead | Serbia | ... Belgrade (Beograd) geographic coordinates: 44 50 N, 20 30 E time difference: UTC+1 (6 hours ahead of Washington, DC during Standard Time) daylight saving time: +1hr, begins last Sunday in March ... |
| ahead | Seychelles | name: Victoria geographic coordinates: 4 38 S, 55 27 E time difference: UTC+4 (9 hours ahead of Washington, DC during Standard Time) |
| ahead | Sierra Leone | name: Freetown geographic coordinates: 8 30 N, 13 15 W time difference: UTC 0 (5 hours ahead of Washington, DC during Standard Time) |
| ahead | Singapore | name: Singapore geographic coordinates: 1 17 N, 103 51 E time difference: UTC+8 (13 hours ahead of Washington, DC during Standard Time) |
| ahead | Sint Maarten | name: Philipsburg geographic coordinates: 18 1 N, 63 2 W time difference: UTC-4 (1 hour ahead of Washington, DC during Standard Time) |
| ahead | Slovakia | ... name: Bratislava geographic coordinates: 48 09 N, 17 07 E time difference: UTC+1 (6 hours ahead of Washington, DC during Standard Time) daylight saving time: +1hr, begins last Sunday in March ... |
| ahead | Slovenia | ... name: Ljubljana geographic coordinates: 46 03 N, 14 31 E time difference: UTC+1 (6 hours ahead of Washington, DC during Standard Time) daylight saving time: +1hr, begins last Sunday in March ... |
| ahead | Solomon Islands | name: Honiara geographic coordinates: 9 26 S, 159 57 E time difference: UTC+11 (16 hours ahead of Washington, DC during Standard Time) |
| ahead | Somalia | name: Mogadishu geographic coordinates: 2 04 N, 45 22 E time difference: UTC+3 (8 hours ahead of Washington, DC during Standard Time) |
| ahead | South Africa | ... Pretoria (administrative capital) geographic coordinates: 25 42 S, 28 13 E time difference: UTC+2 (7 hours ahead of Washington, DC during Standard Time) note: Cape Town (legislative capital); Bloemfontein (judicial capital |
| ahead | South Sudan | name: Juba geographic coordinates: 04 51 N 31 37 E time difference: UTC+3 (8 hours ahead of Washington, DC during Standard Time) |