Capital City:

name: Nuku'alofa

geographic coordinates: 21 08 S, 175 12 W

time difference: UTC+13 (18 hours ahead of Washington, DC, during Standard Time)

daylight saving time: +1hr, begins first Sunday in November; ends second Sunday in January

etymology: name is said to be composed of the local words nuku, meaning "residence or abode," and alofa, meaning "love;" it may also mean "the south," describing Tonga's position in relation to most other Polynesian islands

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