Capital City:

name: Seoul

geographic coordinates: 37 33 N, 126 59 E

time difference: UTC+9 (14 hours ahead of Washington, DC, during Standard Time)

etymology: the name originates from the Korean word meaning "capital city;" it was the capital of the unified Korea from 1392 to 1910

note: Sejong, located some 120 km (75 mi) south of Seoul, serves as an administrative capital for segments of the South Korean government

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