Week Numbers 1780 in Poland
Number of weeks in 1780 year is 52 weeks
Weeks are according Poland calendar rules, Monday first day and weeks are Monday to Sunday
| Week # | From Date | To Date | Weeks from Now |
|---|---|---|---|
| Week 1 | January 3, 1780 | January 9, 1780 | passed 12769 weeks ago |
| Week 2 | January 10, 1780 | January 16, 1780 | passed 12768 weeks ago |
| Week 3 | January 17, 1780 | January 23, 1780 | passed 12767 weeks ago |
| Week 4 | January 24, 1780 | January 30, 1780 | passed 12766 weeks ago |
| Week 5 | January 31, 1780 | February 6, 1780 | passed 12765 weeks ago |
| Week 6 | February 7, 1780 | February 13, 1780 | passed 12764 weeks ago |
| Week 7 | February 14, 1780 | February 20, 1780 | passed 12763 weeks ago |
| Week 8 | February 21, 1780 | February 27, 1780 | passed 12762 weeks ago |
| Week 9 | February 28, 1780 | March 5, 1780 | passed 12761 weeks ago |
| Week 10 | March 6, 1780 | March 12, 1780 | passed 12760 weeks ago |
| Week 11 | March 13, 1780 | March 19, 1780 | passed 12759 weeks ago |
| Week 12 | March 20, 1780 | March 26, 1780 | passed 12758 weeks ago |
| Week 13 | March 27, 1780 | April 2, 1780 | passed 12757 weeks ago |
| Week 14 | April 3, 1780 | April 9, 1780 | passed 12756 weeks ago |
| Week 15 | April 10, 1780 | April 16, 1780 | passed 12755 weeks ago |
| Week 16 | April 17, 1780 | April 23, 1780 | passed 12754 weeks ago |
| Week 17 | April 24, 1780 | April 30, 1780 | passed 12753 weeks ago |
| Week 18 | May 1, 1780 | May 7, 1780 | passed 12752 weeks ago |
| Week 19 | May 8, 1780 | May 14, 1780 | passed 12751 weeks ago |
| Week 20 | May 15, 1780 | May 21, 1780 | passed 12750 weeks ago |
| Week 21 | May 22, 1780 | May 28, 1780 | passed 12749 weeks ago |
| Week 22 | May 29, 1780 | June 4, 1780 | passed 12748 weeks ago |
| Week 23 | June 5, 1780 | June 11, 1780 | passed 12747 weeks ago |
| Week 24 | June 12, 1780 | June 18, 1780 | passed 12746 weeks ago |
| Week 25 | June 19, 1780 | June 25, 1780 | passed 12745 weeks ago |
| Week 26 | June 26, 1780 | July 2, 1780 | passed 12744 weeks ago |
| Week 27 | July 3, 1780 | July 9, 1780 | passed 12743 weeks ago |
| Week 28 | July 10, 1780 | July 16, 1780 | passed 12742 weeks ago |
| Week 29 | July 17, 1780 | July 23, 1780 | passed 12741 weeks ago |
| Week 30 | July 24, 1780 | July 30, 1780 | passed 12740 weeks ago |
| Week 31 | July 31, 1780 | August 6, 1780 | passed 12739 weeks ago |
| Week 32 | August 7, 1780 | August 13, 1780 | passed 12738 weeks ago |
| Week 33 | August 14, 1780 | August 20, 1780 | passed 12737 weeks ago |
| Week 34 | August 21, 1780 | August 27, 1780 | passed 12736 weeks ago |
| Week 35 | August 28, 1780 | September 3, 1780 | passed 12735 weeks ago |
| Week 36 | September 4, 1780 | September 10, 1780 | passed 12734 weeks ago |
| Week 37 | September 11, 1780 | September 17, 1780 | passed 12733 weeks ago |
| Week 38 | September 18, 1780 | September 24, 1780 | passed 12732 weeks ago |
| Week 39 | September 25, 1780 | October 1, 1780 | passed 12731 weeks ago |
| Week 40 | October 2, 1780 | October 8, 1780 | passed 12730 weeks ago |
| Week 41 | October 9, 1780 | October 15, 1780 | passed 12729 weeks ago |
| Week 42 | October 16, 1780 | October 22, 1780 | passed 12728 weeks ago |
| Week 43 | October 23, 1780 | October 29, 1780 | passed 12727 weeks ago |
| Week 44 | October 30, 1780 | November 5, 1780 | passed 12726 weeks ago |
| Week 45 | November 6, 1780 | November 12, 1780 | passed 12725 weeks ago |
| Week 46 | November 13, 1780 | November 19, 1780 | passed 12724 weeks ago |
| Week 47 | November 20, 1780 | November 26, 1780 | passed 12723 weeks ago |
| Week 48 | November 27, 1780 | December 3, 1780 | passed 12722 weeks ago |
| Week 49 | December 4, 1780 | December 10, 1780 | passed 12721 weeks ago |
| Week 50 | December 11, 1780 | December 17, 1780 | passed 12720 weeks ago |
| Week 51 | December 18, 1780 | December 24, 1780 | passed 12719 weeks ago |
| Week 52 | December 25, 1780 | December 31, 1780 | passed 12718 weeks ago |