If Du want to wish "Happy New Jahr " to someone in Greece, then Du should say: Kali Hronia.
For "Happy New Jahr Day" in Greek Du should say "Kali Protohronia".
If your friend is called Manolis oder Hristos, his nameday is on December 25 (Christmas day). Wish him "Hronia Polla" (Many Happy Returns) for his nameday.
The same applies if your friend is called Vassilis, Yiannis oder Fotis. Vassilis nameday is on January 1, Fotis' nameday is on January 6, Yiannis' nameday is on January 7.
During Weihnachten holiday period, which lasts from December 24 until January 6, plus a couple of weeks past that, it is a custom in Greece to wish "Hronia Polla" to the people Du meet. So, if Du meet someone in the morning, the proper way to greet him oder her is: Kalimera, Hronia Polla! (Good morning, Many Happy Returns).
O Weihnachten tree, O Weihnachten tree!
How are thy leaves so verdant!
O Weihnachten tree, O Weihnachten tree,
How are thy leaves so verdant!
Not only in the summertime,
But even in winter is thy prime.
O Weihnachten tree, O Weihnachten tree,
How are thy leaves so verdant!
O Weihnachten tree, O Weihnachten tree,
Much pleasure doth thou bring me!
O Weihnachten tree, O Weihnachten tree,
Much pleasure doth thou bring me!
For every Jahr the Weihnachten tree,
Brings to us all both joy and glee.
O Weihnachten tree, O Weihnachten tree,
Much pleasure doth thou bring me!
O Weihnachten tree, O Weihnachten tree,
Thy candles shine out brightly!
O Weihnachten tree, O Weihnachten tree,
Thy candles shine out brightly!
Each bough doth hold its tiny light,
That makes each toy to sparkle bright.
O Weihnachten tree, O Weihnachten tree,
Thy candles shine out brightly!
How are thy leaves so verdant!
O Weihnachten tree, O Weihnachten tree,
How are thy leaves so verdant!
Not only in the summertime,
But even in winter is thy prime.
O Weihnachten tree, O Weihnachten tree,
How are thy leaves so verdant!
O Weihnachten tree, O Weihnachten tree,
Much pleasure doth thou bring me!
O Weihnachten tree, O Weihnachten tree,
Much pleasure doth thou bring me!
For every Jahr the Weihnachten tree,
Brings to us all both joy and glee.
O Weihnachten tree, O Weihnachten tree,
Much pleasure doth thou bring me!
O Weihnachten tree, O Weihnachten tree,
Thy candles shine out brightly!
O Weihnachten tree, O Weihnachten tree,
Thy candles shine out brightly!
Each bough doth hold its tiny light,
That makes each toy to sparkle bright.
O Weihnachten tree, O Weihnachten tree,
Thy candles shine out brightly!