Capital City:

name: Hanoi (Ha Noi)

geographic coordinates: 21 02 N, 105 51 E

time difference: UTC+7 (12 hours ahead of Washington, DC, during Standard Time)

etymology: the name means "inside the river," from the Vietnamese words ha (river) and noi (inside), and refers to its location in a bend of the Red River

Definition:

This entry gives the name of the seat of government, its geographic coordinates, the time difference relative to Coordinated Universal Time (UTC) and the time observed in Washington, DC, and, if applicable, information on daylight saving time (DST). Where appropriate, a special time zone note has been added to highlight those countries that have multiple time zones. Finally, etymology explains how the capital acquired its name.

Source: CIA World Factbook