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New Year's Day; first day of the year
New Year's morning; morning of New Year's Day
元旦は家でゆっくり過ごした。
I relaxed at home on New Year's Day.
元旦におせち料理を食べた。
I ate osechi cuisine on New Year's Day.
元旦に初日の出を見に行った。
I went to see the first sunrise on New Year's.