It's slightly complicated: Spain's Central American provinces (including what's now Honduras) proclaimed independence jointly on 15 September 1821, but then followed periods of union with Mexico and restored joint independence (1823) as the United Provinces of Central America; Honduras finally proclaimed its own independence on 15 November 1838.
Though 1838 marks the start of the start of the modern-day republic's existence as a separate independent state, Honduras (along with the other formerly united republics) celebrates Independence Day on September 15, marking the break with Spain in 1821.
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That hasn't happened. French Guiana isn't an independent country, but a part of France. It shows no signs of claiming independence yet.