The Notice Period Calculator estimates a last working day by adding a notice period in days, weeks, or months to a resignation date.
Calculation method
Days are added as UTC calendar days, weeks as seven-day blocks, and months with JavaScript calendar-month arithmetic. The output is formatted as YYYY-MM-DD.
Example
For a resignation date of 1 March 2026 and 4 weeks' notice, the estimated last working day is 29 March 2026.
Questions
Does it exclude weekends?
No. It adds calendar time. Contractual working-day rules may produce a different date.
How are months handled?
The tool uses calendar-month addition. End-of-month dates can roll according to JavaScript date rules, so verify unusual dates manually.
Is this a legal determination?
No. Notice counting depends on the contract, award, jurisdiction, and when notice is deemed received.
Limitations
The calculator handles one date and one period. It does not model business holidays, payroll cut-offs, garden leave, or contractual exceptions.