Christmastide vs Christmastime

Christmastide and Christmastime both are nouns.

Word	Noun	Adjective	Verb	Adverb
Christmastide	Yes	No	No	No
Christmastime	Yes	No	No	No

As nouns, Christmastide and Christmastime are synonyms defined as:

Christmastide and Christmastime: period extending from Dec. 24 to Jan. 6

Other synonyms of Christmastide include Christmas, Noel, Yule, Yuletide.

Christmastide (noun)	Christmastime (noun)
period extending from Dec. 24 to Jan. 6	period extending from Dec. 24 to Jan. 6