|This article or subsection has an associated category.||2039|
|years:|| 2036 2037 2038 2039 2040 2041 2042
(stardates from 2039.0)
|decades:||2000s 2010s 2020s 2030s 2040s 2050s 2060s|
|centuries:||20th century - 21st century - 22nd century|
2039 was, on Earth's calendar, the 40th year of the 21st century, and the tenth year of the 2030s decade. Although this was a time period before Human formulation of stardates, this era begins with stardate 2039.0.