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Notice Period Calculator

Enter your notice start date and length to find your exact last working day.

Your last working day is

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What this calculator does

The notice period calculator finds the exact calendar date your employment ends once you (or your employer) start a notice period. Notice periods are usually defined in a contract as a number of days, weeks, or months, and getting the end date wrong can affect your final paycheck, benefits cutoff, and start date at a new job. This tool does the date arithmetic for you and flags weekend endings so you can plan handovers accurately.

Worked example

Say notice is given on Wednesday, March 4, 2026, with a contractual notice period of4 weeks. Adding 28 days to March 4 lands on Wednesday, April 1, 2026 — a weekday, so no adjustment is needed and that becomes the confirmed last working day.

Common mistakes

  • Confusing "1 month's notice" with "30 days." A calendar month can be 28–31 days long, so notice given on January 31 with one month's notice ends on February 28 (or 29 in a leap year), not March 2.
  • Forgetting the start-day convention. Some contracts start counting the day after notice is given; others start the same day. A one-day difference here shifts every downstream date.
  • Ignoring weekend landings. If the calculated date falls on a Saturday or Sunday, most employers treat the preceding Friday as the practical last working day, even if the contractual notice technically runs through the weekend.

Frequently asked questions

How is my last working day calculated?+

We take the date your notice period starts (usually the day you hand in your resignation or the day notice is given) and add your notice period length in days, weeks, or months. If the result falls on a weekend, you can choose to move it to the next Monday.

Does the notice period start on the day I resign or the day after?+

This varies by employer and contract. Most UK and US employers count the day notice is given as day zero and the notice period starts the next day, but some contracts count the day of resignation itself. Check your employment contract or company handbook — this calculator lets you set the exact start date so you can match either convention.

What if my notice period is in months, like "one month's notice"?+

Select "months" as the unit. We use calendar-month arithmetic (the same date next month), which is the standard way contracts define a month's notice. For example, notice given on January 15 with one month's notice ends on February 15.

Should weekends and public holidays be excluded?+

This calculator can move a weekend deadline forward to the next Monday, since a last working day rarely falls on a non-working day. Public holidays vary by country and region, so they are not automatically excluded — factor those in manually if relevant.

Related calculators

Probation End Date CalculatorFind the exact date your probation period ends. Last Working Day CalculatorCalculate your last working day after resigning. Work Anniversary CalculatorFind your next work anniversary and years of service. Contract End Date CalculatorCalculate when a fixed-term contract ends.