Monthly Work Schedule Calculator
Monthly Work Schedule Calculator
See your whole month at a glance. Click any date to swap a shift on, off or half-day, then get your monthly hours, overtime and estimated pay.
Click a date to cycle: Full shift → Off → Half shift → back to default. A small dot marks days you changed by hand.
Why a monthly view matters
Weekly schedules tell you about this week. Monthly schedules tell you about your life. Rents, bills, loan payments and freelance invoices all run on months, not weeks. If you want to know whether March will be tight or comfortable, a weekly number is not going to answer that.
Months also behave differently from weeks. A month can hold four, four-and-a-half, or five working weeks depending on where the weekends fall. February has 20 working days in a typical year. March can have 22 or even 23. That gap of two to three days is real money for anyone paid by the hour.
Working with the calendar
- Pick a base pattern. It decides which weekdays start as working days.
- Set your shift hours, start time, and unpaid break.
- Use the arrows at the top of the calendar to move between months.
- Click any date to cycle through the four states: full shift, off, half shift, and back to the pattern default.
- Add your hourly rate to see the full pay estimate appear underneath the calendar.
- Use "Reset this month" to clear all your manual changes without touching other months.
What you get
- Total paid hours for the selected month
- Days you worked, days off, and half days
- Weekly bucket breakdown with overtime isolated per week
- On-site time including unpaid breaks
- Monthly gross pay with regular and overtime portions shown
- Yearly estimate based on the same month repeated 12 times
- Full override memory when you flip between months
Who this helps
- Freelancers with month-end invoices and hourly rates
- Shift workers on rosters that do not repeat weekly
- Small business owners planning payroll for the month ahead
- Contractors checking a signed monthly timesheet
- Parents who take unpaid days around school holidays
- Anyone whose schedule changes as the month goes on
Reading the totals
The monthly total is simply every shift added together. Days you click off drop to zero. Half days count as half. The weekly buckets underneath group the month into Monday-to-Sunday spans and check each one for hours over 40. That matters because most labour laws count overtime per week, not per month. A week where you worked 45 hours carries overtime even if the rest of the month stayed under 40.
When you have no rate filled in, the calculator still shows every hour figure. Add a rate and the pay estimate appears, split into regular and overtime portions so you can see exactly which hours pushed you over the line.
Wrapping up
Plan your month in a few clicks. Adjust the days that need adjusting. Reset when you are done. The totals stay live as you work, so you always have an up-to-date picture of what your schedule is really worth.
Frequently asked questions
Why is my monthly total not just four times my weekly number?
Because months are not four weeks. They are between four and four-and-a-half weeks long. Over a year, the average is 4.33 weeks per month. The calculator totals the actual days in the selected month, not a rounded figure.
How is overtime counted in a month?
Week by week. The calculator groups the month's days into Monday-to-Sunday buckets and checks each bucket for hours over 40. Weeks that exceed 40 contribute overtime; weeks under 40 do not. That is how most wage rules work in practice.
What is a half day?
Half of your usual full shift. If your full shift is 8 hours, a half day is 4. The calculator works this out from your full shift hours automatically.
Does my clicking carry over to next month?
No. Each month keeps its own overrides. Move to next month and you get a fresh, pattern-based calendar. Return to a month you already edited and your changes are still there.
Can I plan a rotating shift pattern?
Yes. Set the base pattern to what most weeks look like, then use clicks to fix the days that break the pattern. For a two-week rotation, you will need to adjust each week separately — the tool does not know your rotation rules in advance.
What if I work nights?
Set the shift start time to when the night shift begins. The hours per shift still apply. The calendar shows the date the shift starts, not the day it ends. That is the standard convention on most timesheets.
Does this handle public holidays?
Not automatically. Click the date and cycle it to Off. If your employer pays a holiday premium, add it to your hourly rate before entering it.
Is the yearly figure exact?
No. It is the current month's total multiplied by 12. If your schedule varies month to month, switch between months and compare their yearly projections. A full-year total needs all twelve months filled in.