She is the sister of President Joko Widodo and wife of judge Anwar Usman.
Idayati was born on 26 May 1966 in Surakarta, Central Java, as the third child and second daughter of Sudjiatmi and Widjianto Notomiharjo's four children.
[3] Idayati married Hari Mulyono, a businessman who led PT Rakabu Sejahtera, which was owned by Widodo and Indonesian Barecore Association.
[2][4] In October 2021, Idayati was introduced by her friend to Usman, Chief Justice of the Constitutional Court of Indonesia.
[4] He proposed her on 12 March 2022 and they married at Graha Saba Buana in Surakarta, on 26 May, during her 56th birthday.