Igbo Calendar 2025 January With Holidays. This calendar was designed to follow the natural and geographic circles respecting seasons and natural phenomenon experienced within a given location. The calendar has 13 months in a year (afo), 7 weeks in a month (onwa), and 4 days of igbo.

January 2025 has 21 work days. Unlike the gregorian calendar which has 7 days in a week, the igbo calendar has 4 days in a week, 7 weeks in a month, 28 days in a.