haying vs haying time

haying and haying time both are nouns.

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

As nouns, haying and haying time are synonyms defined as:

haying and haying time: the season for cutting and drying and storing grass as fodder

haying (noun)	haying time (noun)
the season for cutting and drying and storing grass as fodder	the season for cutting and drying and storing grass as fodder
the harvesting of hay