Noun
(medicine) The first sixty minutes after sustaining major traumatic injury, during which there is the highest likelihood that prompt medical treatment will prevent death.
(photography) A period shortly after sunrise or before sunset, during which daylight is redder and softer than when the Sun is higher in the sky.
Coordinate term: blue hour
(television) In Japanese television, the period between 7 and 9 pm, the equivalent of the American prime time.
(television, in the plural) Hours worked outside of normal working hours, for which additional money is paid.
Source: en.wiktionary.orgThe golden hour of invention must terminate like other hours, and when the man of genius returns to the cares, the duties, the vexations, and the amusements of life, his companions behold him as one of themselves - the creature of habits and infirmities. Isaac D'Israeli