Free shift pattern calendars and schedules

9/80 Work Schedule

Pick the first day of a pay period to see the 9/80 schedule on a calendar, with the Friday off and the hours in each week.

The 9/80 work schedule tool shows a 9/80 work pattern on a calendar: 80 paid hours over a 14-day pay period, made of eight 9-hour days and one 8-hour day, with one Friday off every other week. It runs in your browser, is free, and needs no sign-up. You enter the first day of your pay period, choose one group or both, and the page shows the work and day-off dates, the hours in each week, and the day-off Fridays for each group. The default view covers two months starting Monday, 5 October 2026. Use it to plan your time, check how many hours each week will look like, or compare the two Friday groups before you talk to your employer about the arrangement.
9/80 work schedule example

How to use the 9/80 Work Schedule Tool

  1. Enter the first day of the pay period in the start date field. It defaults to 2026-10-05, a Monday. Use a Monday if you can, because the 14-day cycle is built for a Monday start.
  2. Choose how many months to show. The default is 2 months.
  3. Pick the group: Both groups, Group A (Friday off in week 2), or Group B (Friday off in week 1).
  4. Check the start and end times. The defaults are 07:30 to 17:00 for a 9-hour day and 07:30 to 16:00 for the 8-hour Friday. If the times you type are shorter than the paid hours of that day, a warning appears.
  5. Read the result. It shows the cycle length, days worked and off, 80 hours per cycle, 40 hours per week on average, the hours of week 1 and week 2, the longest runs, and the day-off Fridays for each group.
  6. Read the calendar. D is the 9-hour day, A is the 8-hour day, and a dash is a day off.

Use Copy link to copy the page address. The link holds every input, so the same schedule reopens later or can be sent to someone else. To print, use the browser’s print dialog, and choose “Save as PDF” if you want a file.

The pattern repeats every 14 days. In each cycle, a group works 9 of the 14 days: eight 9-hour days (D) and one 8-hour day (A). That totals 80 hours, which averages 40 hours a week. Week 1 is Monday to Thursday at 9 hours each plus Friday at 8 hours, giving 44 hours. Week 2 is Monday to Thursday at 9 hours each plus Friday off, giving 36 hours. Since 44 + 36 = 80, the two weeks balance.

Both groups work Monday to Thursday and are off on weekends. The groups differ only on Friday. On any Friday, one group works 8 hours and the other is off, so the two groups are never off on the same Friday. A group’s longest run of work days is 5 (Monday to Friday of the 44-hour week), and its longest run off is 3 (the day-off Friday plus the weekend).

Paid hours are the figures of 9 and 8. The default clock times leave a 30-minute unpaid lunch on top of those hours.

What does the cycle table show?

Under the calendar, the cycle table lists every day of one full cycle, with the date of its first occurrence from your start date and the code each crew works that day. D is a 9-hour day, A is the 8-hour day and a dash is a day off. If you choose one group in the crew selector, that column is outlined.

How do I use the calendar file?

Download .ics builds a calendar file in your browser with one timed event for each work day of the chosen crew, from the start date to the end of the last month shown. Open the file in your calendar program to import the events. The times are plain clock times with no time zone, so a calendar app shows them in your own zone. Nothing is uploaded.

Worked examples

InputResult
start 2026-10-05, 2 month(s), Both groups40 h per week on average, weeks of 44 h / 36 h
start 2026-10-05, 3 month(s), Group A (Friday off in week 2)40 h per week on average, weeks of 44 h / 36 h
start 2026-10-05, 1 month(s), Group B (Friday off in week 1)40 h per week on average, weeks of 36 h / 44 h

Calculated by the tool above; open it with the same values to see each step.

Frequently asked questions

Why does the 9/80 pattern need a Monday start date?

The 14-day cycle is built for a pay period that begins on a Monday. If you enter another weekday, a warning explains the Monday requirement. The page does not shift the pattern to fit another weekday.

Why do the two groups have different day-off Fridays?

The two groups take their day off on different Fridays so that one group is always working the 8-hour Friday while the other is off. This keeps weekday coverage steady, since both groups work Monday to Thursday.

Does the 8-hour Friday mean a shorter lunch?

No. The paid hours stay at 9 and 8. The default times leave a 30-minute unpaid lunch each day. If your lunch is a different length, change the end time, and the hours figures will stay the same.

Is the 9/80 schedule the same at every employer?

No. The pattern is common, but the day off, lunch length, and pay period start can vary. Check the details with your HR team or manager before you use the dates.

No. The tool does not state any legal, overtime, or pay-period rule. Check the arrangement against your own agreement and your local rules.

Is this tool free, and is anything I type uploaded?

Yes, it is free and needs no account or sign-up. Everything is calculated in your browser, and nothing you type is uploaded.

Can I print it or share it?

Yes. Print / save as PDF prints the page as you see it; choose Save as PDF in the print dialog to keep a file. Copy link copies a page address that stores your inputs, so the same schedule can be reopened later or sent to someone else.