Number of weeks in 1680 year is 52 weeks
Weeks are according Mexico calendar rules, Sunday first day and weeks are Sunday to Saturday

Week # From Date To Date Weeks from Now
Week 1 December 31, 1679 January 6, 1680 passed 17995 weeks ago
Week 2 January 7, 1680 January 13, 1680 passed 17994 weeks ago
Week 3 January 14, 1680 January 20, 1680 passed 17993 weeks ago
Week 4 January 21, 1680 January 27, 1680 passed 17992 weeks ago
Week 5 January 28, 1680 February 3, 1680 passed 17991 weeks ago
Week 6 February 4, 1680 February 10, 1680 passed 17990 weeks ago
Week 7 February 11, 1680 February 17, 1680 passed 17989 weeks ago
Week 8 February 18, 1680 February 24, 1680 passed 17988 weeks ago
Week 9 February 25, 1680 March 2, 1680 passed 17987 weeks ago
Week 10 March 3, 1680 March 9, 1680 passed 17986 weeks ago
Week 11 March 10, 1680 March 16, 1680 passed 17985 weeks ago
Week 12 March 17, 1680 March 23, 1680 passed 17984 weeks ago
Week 13 March 24, 1680 March 30, 1680 passed 17983 weeks ago
Week 14 March 31, 1680 April 6, 1680 passed 17982 weeks ago
Week 15 April 7, 1680 April 13, 1680 passed 17981 weeks ago
Week 16 April 14, 1680 April 20, 1680 passed 17980 weeks ago
Week 17 April 21, 1680 April 27, 1680 passed 17979 weeks ago
Week 18 April 28, 1680 May 4, 1680 passed 17978 weeks ago
Week 19 May 5, 1680 May 11, 1680 passed 17977 weeks ago
Week 20 May 12, 1680 May 18, 1680 passed 17976 weeks ago
Week 21 May 19, 1680 May 25, 1680 passed 17975 weeks ago
Week 22 May 26, 1680 June 1, 1680 passed 17974 weeks ago
Week 23 June 2, 1680 June 8, 1680 passed 17973 weeks ago
Week 24 June 9, 1680 June 15, 1680 passed 17972 weeks ago
Week 25 June 16, 1680 June 22, 1680 passed 17971 weeks ago
Week 26 June 23, 1680 June 29, 1680 passed 17970 weeks ago
Week 27 June 30, 1680 July 6, 1680 passed 17969 weeks ago
Week 28 July 7, 1680 July 13, 1680 passed 17968 weeks ago
Week 29 July 14, 1680 July 20, 1680 passed 17967 weeks ago
Week 30 July 21, 1680 July 27, 1680 passed 17966 weeks ago
Week 31 July 28, 1680 August 3, 1680 passed 17965 weeks ago
Week 32 August 4, 1680 August 10, 1680 passed 17964 weeks ago
Week 33 August 11, 1680 August 17, 1680 passed 17963 weeks ago
Week 34 August 18, 1680 August 24, 1680 passed 17962 weeks ago
Week 35 August 25, 1680 August 31, 1680 passed 17961 weeks ago
Week 36 September 1, 1680 September 7, 1680 passed 17960 weeks ago
Week 37 September 8, 1680 September 14, 1680 passed 17959 weeks ago
Week 38 September 15, 1680 September 21, 1680 passed 17958 weeks ago
Week 39 September 22, 1680 September 28, 1680 passed 17957 weeks ago
Week 40 September 29, 1680 October 5, 1680 passed 17956 weeks ago
Week 41 October 6, 1680 October 12, 1680 passed 17955 weeks ago
Week 42 October 13, 1680 October 19, 1680 passed 17954 weeks ago
Week 43 October 20, 1680 October 26, 1680 passed 17953 weeks ago
Week 44 October 27, 1680 November 2, 1680 passed 17952 weeks ago
Week 45 November 3, 1680 November 9, 1680 passed 17951 weeks ago
Week 46 November 10, 1680 November 16, 1680 passed 17950 weeks ago
Week 47 November 17, 1680 November 23, 1680 passed 17949 weeks ago
Week 48 November 24, 1680 November 30, 1680 passed 17948 weeks ago
Week 49 December 1, 1680 December 7, 1680 passed 17947 weeks ago
Week 50 December 8, 1680 December 14, 1680 passed 17946 weeks ago
Week 51 December 15, 1680 December 21, 1680 passed 17945 weeks ago
Week 52 December 22, 1680 December 28, 1680 passed 17944 weeks ago