The World Interfaith Harmony Week (WIHW) promoted by the United Nations in the year 2010 will become a national program in 2020 in the Philippines. The Silsilah Dialogue Movement since the beginning has been in the front line to promote this initiative, first in Zamboanga City and after in many other areas in Mindanao and Manila area. In preparation to the 500 hundred years of Christianity in the Philippines (2021) the Catholic Bishops' Conference of the Philippines (CBCP) will give, in the year 2020, a special attention to Interreligious  Dialogue, Ecumenism and Indigenous Peoples, inviting the commissions in charge of these three specific ministries of CBCP to develop some programs and activities. The Episcopal Commission for Interreligious Dialogue (ECID) among other initiatives proposed to celebrate on national level the WIHW. It is a tradition that on national level, all adopt the same theme that changes every year and the same logo that Zamboanga partners introduced since 2012, although partners of a other places can decide to have another themes. The year 2020 will be the time when this initiative will be celebrated on the national level supported also by the CBCP and the Republic Act 10525 signed by President Benigno Aquino III, “An act declaring the First Week of February of every year as World Interfaith Harmony Week (WIHW) in the entire country and mandating its observance by the different Government Agencies”. We present in this booklet the program with a primer of the WIHW of the Zamboanga Partners for the year 2020. We propose to all the dioceses and other institutions in the country to get ideas to promote some activities in the different areas. WIHW partners of Zamboanga have agreed to propose the theme of the WIHW celebration 2020 in Zamboanga City as “CELEBRATING DIALOGUE TOWARDS HARMONY."