1st week of year 1180

Monday, December 31, 1179 — Sunday, January 6, 1180

• Monday, December 31, 1179
• Tuesday, January 1, 1180
• Wednesday, January 2, 1180
• Thursday, January 3, 1180
• Friday, January 4, 1180
• Saturday, January 5, 1180
• Sunday, January 6, 1180