Each lord was associated with a particular fortune, bad or good, that was an omen for the night that they ruled over.
[2] The glyphs corresponding to the night gods are known and Mayanists identify them with labels G1 to G9, the G series.
[3][4] The existence of a 9 nights cycle in Mesoamerican calendrics was first discovered in 1904 by Eduard Seler.
Seler argued that the 9 lords each corresponded to one of the nine levels of the underworld and ruled the corresponding hour of the nighttime; this argument has not generally been accepted, since the evidence suggests that the lord of a given night ruled over that entire night.
[5] Zelia Nuttall argued that the Nine Lords of the Night represented the nine moons of the Lunar year.