Uganda: Polity Style: 1962-1963

9 Oct 1962	the territories of the Uganda Protectorate form an independent state under the name of Uganda on 9 Oct 1962, the date appointed by an act passed by the Parliament of the United Kingdom (House of Commons on 18 Jul 1962; House of Lords on 31 Jul 1962, received Royal Assent on 1 Aug 1962) (Public General Acts, 1962, pp. 1182-1189) [1]
9 Oct 1962	the Constitution of Uganda, appended as a Schedule to the Uganda (Independence) Order in Council 1962, comes into operation immediately before 9 Oct 1962, in accordance with the Uganda (Independence) Order in Council 1962, made on 2 Oct 1962 (Statutory Instruments, 1962, Part III, pp. 2745-2887; Uganda Gazette, No. 73, 6 Oct 1962, Subsidiary Legislation Supplement No. 53, Legal Notice No. 251 of 1962, pp. 777-947)
9 Oct 1962 - 8 Oct 1963	Uganda
9 Oct 1963	Uganda became a sovereign state in accordance with an act passed by the National Assembly of Uganda on 26 Sep 1963, assented to on 30 Sep 1963, effective on 9 Oct 1963 (Uganda Gazette, Legal Supplement (Acts of Parliament) No. 13, 1 Oct 1963, Act No. 61 of 1963, pp. 392-413) [2][3]

Full title: An Act to make provision for, and in connection with, the attainment by Uganda of fully responsible status within the Commonwealth (may be cited as the Uganda Independence Act, 1962).
Full title: An Act to Effect Changes in the Constitutional Position of Uganda, to Amend the Uganda (Independence) Order in Council, 1962, and the Constitution of Uganda, and to Make Provision Consequent Thereon (may be cited as the Constitution of Uganda (First Amendment) Act, 1963).
The amendments to the Constitution did not explicitly provide for the change of the name, but "Sovereign State of Uganda" was mentioned in Art. 3 and also featured in the Oaths Act, 1963, and the Public Seal Act, 1963.