September 29, 2042 (Monday) to October 5, 2042 (Sunday)
Week 40 of 2042 runs from September 29, 2042 (Monday) to October 5, 2042 (Sunday). This is the 40th week of the year according to the ISO 8601 standard, in which weeks start on Monday.
Sep 29 is a Monday. It is the first day of Week 40 of 2042.
Oct 5 is a Sunday. It is the last day of Week 40 of 2042.
Sep 29 is in Week 40 of 2042 according to ISO 8601.
Oct 5 is in Week 40 of 2042 according to ISO 8601.
Week 40 of 2042 runs from September 29, 2042 to October 5, 2042.
Week 40 of 2042 starts on September 29, 2042, the 272th day of 2042.
Yes, all 7 days of Week 40 of 2042 fall within 2042.
2042 has 52 weeks according to ISO 8601.