A set of January 2022 high-definition Osamu calendar wallpapers are shared with everyone. Wallpaper size: 2800x1800. Osamu is the 23rd solar term among the twenty-four solar terms. Osamu marks the beginning of the coldest days of the year. The time isBetween January 5 and 7 of the Gregorian calendar, the sun is located at 285° ecliptic longitude.