Capital:
name: Nuku'alofa geographic coordinates: 21 08 S, 175 12 W time difference: UTC+13 (18 hours ahead of Washington, DC during Standard Time)
Administrative divisions:
3 island groups; Ha'apai, Tongatapu, Vava'u
Independence:
4 June 1970 (from UK protectorate)
National holiday:
Emancipation Day, 4 June (1970)
Constitution:
4 November 1875; revised 1 January 1967