Saturday
Hanukkah was (and still is) an 8 day holiday. So in 1967, it spanned all the days of the week plus an extra day.
July 2 1967 was a Sunday.
The Twenty-First Century - 1967 The Four-Day Week was released on: USA: 15 October 1967
7 January 1967 was a Saturday.
26 May 1967 was a Friday.
21 October 1967 was on a Saturday.
26 December 1967 was a Tuesday.
25 December 1967 was a Monday.
6 June 1967 was a Tuesday.
3 May 1967 was a Wednesday.
1 October 1967 was a Sunday.
13th May 1967 was a Saturday.