40th week of year 1280

Monday, September 30, 1280 — Sunday, October 6, 1280

• Monday, September 30, 1280
• Tuesday, October 1, 1280
• Wednesday, October 2, 1280
• Thursday, October 3, 1280
• Friday, October 4, 1280
• Saturday, October 5, 1280
• Sunday, October 6, 1280