1664/1665
For 1664/1665, the key weeks and dates were:
Week 1: 20 December to 27 December 1664
New Year 1665, Week 2: 27 December to 3 January 1665
Legal New Year, Week 14: 21 March to 28 March 1665
Week 52: 12 December to 19 December 1665
For 1664/1665, the key weeks and dates were:
Week 1: 20 December to 27 December 1664
New Year 1665, Week 2: 27 December to 3 January 1665
Legal New Year, Week 14: 21 March to 28 March 1665
Week 52: 12 December to 19 December 1665
