January 31, 2028 (Monday) to February 6, 2028 (Sunday)
Week 5 of 2028 runs from January 31, 2028 (Monday) to February 6, 2028 (Sunday). This is the 5th week of the year according to the ISO 8601 standard, in which weeks start on Monday.
Jan 31 is a Monday. It is the first day of Week 5 of 2028.
Feb 6 is a Sunday. It is the last day of Week 5 of 2028.
Jan 31 is in Week 5 of 2028 according to ISO 8601.
Feb 6 is in Week 5 of 2028 according to ISO 8601.
Week 5 of 2028 runs from January 31, 2028 to February 6, 2028.
Week 5 of 2028 starts on January 31, 2028, the 31th day of 2028.
Yes, all 7 days of Week 5 of 2028 fall within 2028.
2028 has 52 weeks according to ISO 8601.