Date calculator for every scenario — notice period, age, deadlines
One free tool for notice period end dates, exact age, days between two dates, adding weeks or months to a contract, and browsing a calendar. Pick a scenario below or open the calculator — nothing uploaded.
Notice period calculator
Resigning or terminating employment? Enter your last working day or resignation date and add 30, 60, or 90 days — the standard notice periods in India and many contracts worldwide. See the exact last working day with weekday and calendar view.
Age calculator
Enter a birth date and any “as of” date to get age in years, months, and days — plus total days lived and days until the next birthday. Useful for school admission cutoffs, insurance, and forms that ask for exact age.
Days between two dates
Count how many days, weeks, and months lie between a start and end date — project deadlines, visa stay limits, rental notice windows, or time until an event.
Add or subtract days, weeks, months, years
Start from any date and add or subtract time. Handles month-end sensibly (31 Jan + 1 month → 28/29 Feb). Quick presets for +1 week, +1 month, +1 year, and common compliance windows.
Calendar with full date breakdown
Browse month by month, tap a day, and see year, month, day, weekday, day-of-year, ISO week number, quarter, and whether it is a leap year.
All use cases
- Notice period · 30 days — Last working day after a 30-day notice (common in India).
- Notice period · 60 days — Senior roles or contracts with a 60-day notice clause.
- Notice period · 90 days — Three-month notice — add 90 days from resignation date.
- Probation end · 3 months — When a three-month probation period ends.
- Probation end · 6 months — Six-month probation or trial period end date.
- Rent notice · 11 months — Typical 11-month lease cycle in India before renewal.
- Landlord notice · 30 days — Vacate-by date after giving one month’s notice.
- Contract expiry · 1 year — Annual agreement renewal date.
- Warranty ends · 1 year — Product warranty or return-window expiry.
- Due date · 40 weeks — Estimated due date from last menstrual period (approx.).
- Age today — Exact age in years, months, and days as of today.
- Visa reminder · 90 days — Renew or exit before a 90-day stay limit.
- Passport expiry · 10 years — Typical passport validity from issue date.
- Payment due · 30 days — Net-30 invoice or EMI due date.
- Filing deadline · 3 months — Quarterly or 90-day compliance window.
- Days between · 90 days — Count a 90-day gap from today to a target date.
- Retirement date — Add years until retirement age from date of birth or joining date.
- School admission age — Check if a child meets the age cutoff on the admission date using Age mode.
- HRA rent month range — Pair with our Rent Receipt tool — use Days between for a full month or financial year.
- Event countdown — Days between today and a wedding, exam, or launch date.
Frequently asked questions
How do I calculate notice period in days?
Open the calculator, set your resignation or start date, choose Add mode, enter 30, 60, or 90 days (or your contract length), and read the result date.
Are my dates uploaded?
No. All calculations run in your browser.
Does it handle leap years and month-end dates?
Yes — adding months or years clamps to the last valid day when needed (e.g. Jan 31 + 1 month → Feb 28 or 29).
Can I subtract time from a date?
Yes — use Subtract mode when adding days, weeks, months, or years.
Is this legal advice for employment notice?
No — it is a date math tool. Follow your offer letter, contract, and local labour laws.