Notice Period Rules: 30/60/90 Days Explained
Notice periods generate more exit-day disputes than any other clause in an employment contract. Here is how 30/60/90-day and one-month notices actually count, what a buyout costs, and how to land your exact last working day without a fight.
The Counting Rules That Decide Your Last Day
- Calendar days, not working days: "90 days notice" includes weekends and holidays — it is three months on the calendar, not 90 office days. Only a contract explicitly saying "working days" changes this.
- Notice starts the day after you submit your resignation — resign March 10 with 90 days, and your last working day is June 8.
- "One month" ends on the same date next month — not after 30 flat days. Resign on the 15th, finish on the 15th. The distinction bites in February and 31-day months.
- Weekend landings: if the end date falls on Saturday/Sunday, most employers set the preceding Friday as the last working day — get it confirmed in writing.
Skip the mental math: the notice period calculator handles day-based and month-based notices with weekend detection, and the two weeks notice calculator covers the US convention.
Typical Notice Lengths
| Context | Typical notice |
|---|---|
| US private (at-will) | 2 weeks — courtesy, not law |
| UK statutory minimum | 1 week (employee); contracts commonly 4–12 weeks |
| India IT/services | 30–90 days by contract |
| Probation periods | Much shorter — often 15–30 days (check before quoting dates to a new employer; see the probation calculator) |
Notice Buyout: Leaving Early
Most Indian contracts allow paying salary in lieu of unserved days — per-day salary × shortfall — usually recovered from your final settlement as "notice recovery". Three cautions: get the buyout approved in writing before committing a joining date; confirm whether recovery is computed on basic or gross salary (the difference is 40–60%); and remember an employer can refuse if the contract makes service mandatory. The recovery lands in your full and final settlement — model it before resigning.
Rights and Realities During Notice
- Leave during notice: often restricted, and approved leave may extend the end date. Unused earned leave usually converts to cash instead — see the leave encashment calculator.
- Employer ending it early: at-will US employers can accept your notice immediately; UK/India employers cutting notice short generally owe the remainder.
- Garden leave: you stay employed and paid but at home — the end date does not change.
- Salary continues as normal — notice period pay is regular wages, and working days during notice count toward gratuity service (India) and vesting.
The Exit Checklist
- Resignation acceptance in writing with the agreed last working day.
- Handover document — your reference depends on the last two weeks, not the last two years.
- Final money verified: unpaid salary, leave encashment, and (5+ years, India) gratuity — assembled in the final paycheck calculator or FnF calculator.
- Documents collected: relieving letter, experience certificate, final payslips, tax forms.
Frequently Asked Questions
Is notice period counted in calendar days or working days?
Calendar days in almost all contracts — weekends and holidays count. A 90-day notice is three calendar months, roughly 62-65 working days.
How is a one-month notice period calculated?
It ends on the same date of the following month — resign on the 15th, finish on the 15th — not after 30 fixed days.
Can I buy out my notice period?
Usually yes where contracts allow: per-day salary × unserved days, recovered from your final settlement or reimbursed by the new employer. Get written approval first.
Can my employer make me leave before my notice ends?
US at-will: yes, immediately. UK/India: generally only by paying out the remaining notice, absent serious misconduct.
Does notice period count toward gratuity?
Yes — served notice is service. If notice takes you past the 5-year mark or a 6-month rounding boundary in India, your gratuity grows accordingly.
Last updated: August 20, 2026