| Country | Capital |
| Afghanistan | name: Kabul geographic coordinates: 34 31 N, 69 11 E time difference: UTC+4.5 (9.5 hours ahead of Washington, DC during Standard Time) |
| Akrotiri | name: Episkopi Cantonment (base administrative center for Akrotiri and Dhekelia) geographic coordinates: 34 40 N, 32 51 E time difference: UTC+2 (7 hours ahead of Washington, DC during Standard Time) daylight saving time: +1hr, begins last Sunday in March; ends last Sunday in October |
| Albania | name: Tirana (Tirane) geographic coordinates: 41 19 N, 19 49 E time difference: UTC+1 (6 hours ahead of Washington, DC during Standard Time) daylight saving time: +1hr, begins last Sunday in March; ends last Sunday in October |
| Algeria | name: Algiers geographic coordinates: 36 45 N, 3 03 E time difference: UTC+1 (6 hours ahead of Washington, DC during Standard Time) |
| American Samoa | name: Pago Pago geographic coordinates: 14 16 S, 170 42 W time difference: UTC-11 (6 hours behind Washington, DC during Standard Time) |
| Andorra | name: Andorra la Vella geographic coordinates: 42 30 N, 1 31 E time difference: UTC+1 (6 hours ahead of Washington, DC during Standard Time) daylight saving time: +1hr, begins last Sunday in March; ends last Sunday in October |
| Angola | name: Luanda geographic coordinates: 8 50 S, 13 14 E time difference: UTC+1 (6 hours ahead of Washington, DC during Standard Time) |
| Anguilla | name: The Valley geographic coordinates: 18 13 N, 63 03 W time difference: UTC-4 (1 hour ahead of Washington, DC during Standard Time) |
| Antarctica | void |
| Antigua and Barbuda | name: Saint John's geographic coordinates: 17 07 N, 61 51 W time difference: UTC-4 (1 hour ahead of Washington, DC during Standard Time) |
| Arctic Ocean | void |
| Argentina | name: Buenos Aires geographic coordinates: 34 36 S, 58 40 W time difference: UTC-3 (3 hours ahead of Washington, DC during Standard Time) daylight saving time: +1hr, begins first Sunday in October; ends third Saturday in March; note - a new policy of daylight saving time was initiated by the government on 30 December 2007 |