haying time vs time of year

haying time and time of year both are nouns.

Word	Noun	Adjective	Verb	Adverb
haying time	Yes	No	No	No
time of year	Yes	No	No	No

As nouns, time of year is a hypernym of haying time; that is, time of year is a word with a broader meaning than haying time:

haying time: the season for cutting and drying and storing grass as fodder
time of year: one of the natural periods into which the year is divided by the equinoxes and solstices or atmospheric conditions

Other hypernyms of haying time include season.

haying time (noun)	time of year (noun)
the season for cutting and drying and storing grass as fodder	one of the natural periods into which the year is divided by the equinoxes and solstices or atmospheric conditions