Employment dates
Notice period calculator: estimate your last working day
Use a notice period calculator to plan a resignation timeline with calendar or working days and decide whether the notice date counts as day one.
Updated August 5, 2026 · 5 min read
Start with the date the notice is formally received
A resignation draft date and the date the employer receives or accepts it may not be the same. Use the date recognised by the applicable policy when you have it.
The calculator can count that date as day one or begin from the following day. Choose the method stated in the employment terms rather than relying on a general assumption.
Calendar days and working days produce different results
A 30-calendar-day period includes weekends. A 30-working-day period skips the selected weekend and can extend much further across the calendar.
When the notice period uses working days, choose the correct weekend pattern and enter only holidays or other exclusions that fall on days that would otherwise count as working days.
Do not treat one month and 30 days as identical
Calendar months have different lengths. A policy stating one month may be interpreted differently from one stating 30 calendar days, especially around February or a 31-day month.
This tool calculates a number of days. Ask for clarification when the agreement uses months, pay cycles, or another rule instead of a fixed day count.
Get the final date confirmed in writing
Approved leave, notice waiver, buyout, garden leave, handover requirements, and public holidays can move the official final date. A future employer should not be given an unconfirmed joining date as a certainty.
Use the result to plan discussions and handover work, then rely on written confirmation from the current employer for the official last working day.
Put this guide into practice
Use the related calculators
Put the steps in this guide into practice with a focused calculator, then return here to check an assumption or compare another scenario.