Khan served in the Research Department in the Holy Land, Haifa, Israel from 1983 to 2000 and was also a member of the International Advisory Board for the Bahá’í Chair for World Peace at the University of Maryland.
Both Peter and Janet Khan led courses at the Northwest Bahá'í Summer School in Seabeck, Washington in June-July 1970[5] and at Bahá'í conferences including at Michigan State University, East Lansing, Michigan in January 1971[6] at the Green Lake Institute, Wisconsin in October 1975[7][8] and at Green Bay, Wisconsin in December 1975.
[14] While on sabbatical leave, in her role as Vice-Chair of the National Spiritual Assembly of the Bahá'ís of Australia, and in service to the National Spiritual Assembly of the Bahá'ís of the United States, Khan travelled to the United States where she was a featured speaker at a Bahá'í Youth Conference in Coeur d’Alene, Idaho in June 1980[15] and visited Bahá'í communities in Idaho, Oregon, Washington and northern California in June and July 1980.
[9][11] In her role as Chair of the National Spiritual Assembly of the Bahá'ís of Australia, Khan spoke at the Bahá'í International Conference in Canberra, ACT in September 1982.
Khan has continued to actively serve the Bahá’í Faith in Australia as an author and public speaker after her husband passed away in July 2011.
[18][19] In June 2015, Khan attended a multi-faith gathering with the Dalai Lama in Brisbane, Australia, where she read a prayer by ‘Abdu’l-Baha, head of the Bahá'í Faith from 1892 to 1921.