Week Numbers 1664 in Austria
Number of weeks in 1664 year is 52 weeks
Weeks are according Austria calendar rules, Monday first day and weeks are Monday to Sunday
| Week # | From Date | To Date | Weeks from Now |
|---|---|---|---|
| Week 1 | December 31, 1663 | January 6, 1664 | passed 18823 weeks ago |
| Week 2 | January 7, 1664 | January 13, 1664 | passed 18822 weeks ago |
| Week 3 | January 14, 1664 | January 20, 1664 | passed 18821 weeks ago |
| Week 4 | January 21, 1664 | January 27, 1664 | passed 18820 weeks ago |
| Week 5 | January 28, 1664 | February 3, 1664 | passed 18819 weeks ago |
| Week 6 | February 4, 1664 | February 10, 1664 | passed 18818 weeks ago |
| Week 7 | February 11, 1664 | February 17, 1664 | passed 18817 weeks ago |
| Week 8 | February 18, 1664 | February 24, 1664 | passed 18816 weeks ago |
| Week 9 | February 25, 1664 | March 2, 1664 | passed 18815 weeks ago |
| Week 10 | March 3, 1664 | March 9, 1664 | passed 18814 weeks ago |
| Week 11 | March 10, 1664 | March 16, 1664 | passed 18813 weeks ago |
| Week 12 | March 17, 1664 | March 23, 1664 | passed 18812 weeks ago |
| Week 13 | March 24, 1664 | March 30, 1664 | passed 18811 weeks ago |
| Week 14 | March 31, 1664 | April 6, 1664 | passed 18810 weeks ago |
| Week 15 | April 7, 1664 | April 13, 1664 | passed 18809 weeks ago |
| Week 16 | April 14, 1664 | April 20, 1664 | passed 18808 weeks ago |
| Week 17 | April 21, 1664 | April 27, 1664 | passed 18807 weeks ago |
| Week 18 | April 28, 1664 | May 4, 1664 | passed 18806 weeks ago |
| Week 19 | May 5, 1664 | May 11, 1664 | passed 18805 weeks ago |
| Week 20 | May 12, 1664 | May 18, 1664 | passed 18804 weeks ago |
| Week 21 | May 19, 1664 | May 25, 1664 | passed 18803 weeks ago |
| Week 22 | May 26, 1664 | June 1, 1664 | passed 18802 weeks ago |
| Week 23 | June 2, 1664 | June 8, 1664 | passed 18801 weeks ago |
| Week 24 | June 9, 1664 | June 15, 1664 | passed 18800 weeks ago |
| Week 25 | June 16, 1664 | June 22, 1664 | passed 18799 weeks ago |
| Week 26 | June 23, 1664 | June 29, 1664 | passed 18798 weeks ago |
| Week 27 | June 30, 1664 | July 6, 1664 | passed 18797 weeks ago |
| Week 28 | July 7, 1664 | July 13, 1664 | passed 18796 weeks ago |
| Week 29 | July 14, 1664 | July 20, 1664 | passed 18795 weeks ago |
| Week 30 | July 21, 1664 | July 27, 1664 | passed 18794 weeks ago |
| Week 31 | July 28, 1664 | August 3, 1664 | passed 18793 weeks ago |
| Week 32 | August 4, 1664 | August 10, 1664 | passed 18792 weeks ago |
| Week 33 | August 11, 1664 | August 17, 1664 | passed 18791 weeks ago |
| Week 34 | August 18, 1664 | August 24, 1664 | passed 18790 weeks ago |
| Week 35 | August 25, 1664 | August 31, 1664 | passed 18789 weeks ago |
| Week 36 | September 1, 1664 | September 7, 1664 | passed 18788 weeks ago |
| Week 37 | September 8, 1664 | September 14, 1664 | passed 18787 weeks ago |
| Week 38 | September 15, 1664 | September 21, 1664 | passed 18786 weeks ago |
| Week 39 | September 22, 1664 | September 28, 1664 | passed 18785 weeks ago |
| Week 40 | September 29, 1664 | October 5, 1664 | passed 18784 weeks ago |
| Week 41 | October 6, 1664 | October 12, 1664 | passed 18783 weeks ago |
| Week 42 | October 13, 1664 | October 19, 1664 | passed 18782 weeks ago |
| Week 43 | October 20, 1664 | October 26, 1664 | passed 18781 weeks ago |
| Week 44 | October 27, 1664 | November 2, 1664 | passed 18780 weeks ago |
| Week 45 | November 3, 1664 | November 9, 1664 | passed 18779 weeks ago |
| Week 46 | November 10, 1664 | November 16, 1664 | passed 18778 weeks ago |
| Week 47 | November 17, 1664 | November 23, 1664 | passed 18777 weeks ago |
| Week 48 | November 24, 1664 | November 30, 1664 | passed 18776 weeks ago |
| Week 49 | December 1, 1664 | December 7, 1664 | passed 18775 weeks ago |
| Week 50 | December 8, 1664 | December 14, 1664 | passed 18774 weeks ago |
| Week 51 | December 15, 1664 | December 21, 1664 | passed 18773 weeks ago |
| Week 52 | December 22, 1664 | December 28, 1664 | passed 18772 weeks ago |