Calculating the Last Working Day of a Notice Period
4 min read HRemployment
When someone resigns, HR and the employee both need the same answer to one question: what is the last working day? Get it wrong and you mis-time the final paycheck, the handover, and the start date at the next job.
Weeks vs working days
Notice periods are usually stated in weeks or months in the contract, but the practical question is which working day the period lands on. "Four weeks from Tuesday" is unambiguous as a calendar date; "20 working days" requires you to skip weekends and holidays as you count.
Where it goes wrong
- Notice given mid-week shifts every subsequent boundary.
- Public holidays inside the window may or may not extend the last working day, depending on whether the period is counted in calendar or working days.
- Garden leave changes who's working but usually not the date math.
Get one authoritative date
The Notice Period / Last Working Day calculator takes the resignation date and the notice length, applies your country's holidays, and returns the last working day — the single date everyone can plan around.