New Year, New Year's Holidays, Japanese New Year
noun
You correct the moon because it's a New Year. It's the beginning of a fresh year, so you gotta have the moon in the correct position. This usually refers to the first few days of a new year, and it's one of the biggest holidays in Japan.
しょうがつ
This is a jukugo word, which usually means on'yomi readings from the kanji. Both of these kanji have a couple of on'yomi readings, so here's a mnemonic to help you remember which ones to use: At New Year, you hate your Shougun's guts (しょうがつ). He doesn't celebrate New Year, you see, so none of you get any time off. He even started a war last New Year and ruined everyone's holidays. No wonder you hate that shougun's guts.
もうすぐ、お正月ですね。
New Year's is coming soon.
正月休みは、いつからですか？
When does your New Year's holiday start?
今年の正月のセールでは、スーツが全て五十パーセントオフです。
At this year's New Year sale, all the suits will be 50% off.