CONTEMPORANEITY
contemporaneity, contemporaneousness
(noun) the quality of belonging to the same period of time
modernity, modernness, modernism, contemporaneity, contemporaneousness
(noun) the quality of being current or of the present; “a shopping mall would instill a spirit of modernity into this village”
Source: WordNet® 3.1
Noun
contemporaneity (uncountable)
The state or characteristic of being contemporaneous.
Synonyms: contemporaneousness, cotemporality
Source: Wiktionary
Con*tem`po*ra*ne"i*ty, n.
Definition: The state of being contemporaneous.
The lines of contemporaneity in the oölitic system. J. Philips.
Source: Webster’s Unabridged Dictionary 1913 Edition