1st week of year 1378

Monday, December 29, 1377 — Sunday, January 4, 1378

• Monday, December 29, 1377
• Tuesday, December 30, 1377
• Wednesday, December 31, 1377
• Thursday, January 1, 1378
• Friday, January 2, 1378
• Saturday, January 3, 1378
• Sunday, January 4, 1378