When two people are both alive during the same time period, this is an example of a situation where those people are contemporaneous with each other.
Origin of contemporaneousClassical Latin contemporaneus from com-, with + tempus: see contemporary
Origin of contemporaneousLatin contemporāneus com- com- tempus tempor- time -āneus adj. suff.
- con·tem′po·ra·ne′i·ty con·tem′po·ra′ne·ous·ness
- For events which occur at precisely the same time, simultaneous is used.