Chronophilia are sexual preferences involving partners of differing ages.
Infantophilia - sexual preference for infants:

Pedophilia - sexual preference for children:

Hebephilia - sexual preference for pubescent youths, 12–14 years old:

Ephebophilia - sexual preference for mid to late adolescents, 15–19 years old:

Teliophilia - sexual preference for adults:

Gerontophilia - sexual preference for the elderly:
