Jan.

January is the first month of the year in the Julian and Gregorian calendars, and one of seven Gregorian months with the length of 31 days.January begins (astrologically) with the sun in the sign of Capricorn and ends in the sign of Aquarius. Astronomically speaking, the sun begins in the constellation of Sagittarius and ends in the constellation of Capricornus.January is named for Janus (Ianuarius), the god of the doorway; the name has its beginnings in Roman mythology, where the Latin word for door (ianua) comes from - January is the door to the year.
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ADJ
January (month/mensis understood); abb. Jan.

[Januari] January

[January] bulan January