168 days
- In weeks
- 24 weeks
- Years, months, days
- 5 months, 15 days
- Weekdays (Mon–Fri)
- 120
- Business days (minus federal holidays)
- 113
- Hours
- 4,032
How it’s calculated
Days between = end date − start date (add 1 to count both dates).
Weeks = days ÷ 7, with the remainder in days.
Worked example with your numbers
- From September 28, 2026 to March 15, 2027: 168 days (end − start) = 168 days.
- 168 days ÷ 7 = 24 weeks.
- Calendar months: 5 months, 15 days (a month runs to the same day number of the next month; the last day is used when a month is shorter).
- Weekdays (Monday–Friday) in the span: 120; weekend days: 48.
- Business days after federal holidays on weekdays (7: Columbus Day, Veterans Day, Thanksgiving Day, Christmas Day, New Year’s Day, Birthday of Martin Luther King, Jr., Washington’s Birthday): 113.