As nouns the difference between chronophobia and pyrophobia
is that chronophobia is fear of the passing of time, or more generally of time itself while pyrophobia is the hate, or an abnormal or even irrational fear of fires or flames.
chronophobia
English
Noun
(-)
Fear of the passing of time, or more generally of time itself.
pyrophobia
English
Noun
(-)
The hate, or an abnormal or even irrational fear of fires or flames.