Days Between Dates Calculator - Count Duration Between Any Two Dates
Calculate exact days between two dates. Get results in days, weeks, months, years. Include or exclude end date. Instant Results.
Days Between Dates Calculator - Count Duration Between Any Two Dates
Calculate the exact number of days between two dates. Perfect for planning projects, tracking deadlines, or counting down to special events.
Count both dates in the duration
How to Use This Calculator
- Select your start date using the calendar picker
- Choose your end date (the calculator works regardless of date order)
- Optionally check "Include end date" to count both days
- Click "Calculate" to see the complete breakdown
- Use "Swap" to quickly reverse the dates
Common Uses
- Project Planning: Calculate 90-day notice periods for job resignations
- Event Countdown: Days until your wedding or vacation
- Age Calculation: Exact days you've been alive
- Legal Deadlines: Calculate statutory time limits and filing deadlines
- Rental Agreements: Total days for lease periods
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Age Calculator - Find Your Exact Age in Years, Months & Days
Calculate your exact age in years, months, days, and even hours. Find out what day of the week you were born on and when your next birthday arrives.
How to Use the Age Calculator
- Enter your date of birth (or the person's DOB you want to calculate)
- The calculator automatically uses today's date, or select a different date
- Click "Calculate Age" to see your exact age breakdown
- See additional details like your zodiac sign and days until next birthday
What You'll Discover
- Exact Age: Your age broken down into years, months, and days
- Birth Day: What day of the week you were born on
- Life Duration: Total months, weeks, days, and hours you've lived
- Birthday Countdown: Exact days remaining until your next birthday
- Zodiac Signs: Your Western zodiac sign and Chinese zodiac animal
- Milestone Tracking: Perfect for tracking baby ages or planning milestone celebrations
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Date Calculator - Add or Subtract Days from Any Date
Calculate future or past dates by adding or subtracting days, weeks, months, or years. Perfect for project deadlines, contract end dates, and planning milestones.
How to Use the Date Add/Subtract Calculator
- Select your starting date (defaults to today)
- Enter the number of days, weeks, months, or years
- Choose "Add" to calculate a future date or "Subtract" for a past date
- Click "Calculate" to see the resulting date
- Use quick action buttons for common periods like 30, 60, or 90 days
Practical Applications
- Notice Period: Calculate exact date 90 days from your resignation
- Project Deadlines: Set milestone dates by adding weeks or months
- Contract End Dates: Calculate when agreements expire
- Visa Expiry: Determine exact dates from visa issue date
- Payment Due Dates: Calculate 30, 60, or 90-day payment terms
- Warranty Periods: Find warranty expiration dates
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Business Days Calculator - Count Working Days Between Dates
Calculate working days between two dates, excluding weekends and Indian national holidays. Essential for project planning, delivery schedules, and notice period calculations.
How to Use the Business Days Calculator
- Enter your start date and end date
- Keep "Exclude weekends" checked to skip Saturdays and Sundays
- Enable "Exclude Indian holidays" to remove national holidays from the count
- Optionally add custom holidays specific to your organisation
- Click "Calculate" to see total working days
- Review the breakdown showing which holidays were excluded
When to Use Business Days
- Notice Periods: Calculate 90 working days for job resignations
- Project Timelines: Estimate actual working days for project delivery
- Procurement Processes: Determine tender submission deadlines
- Legal Compliance: Calculate statutory notice periods and filing deadlines
- Service Level Agreements: Track SLA timelines in business days
- Delivery Schedules: Calculate realistic delivery dates excluding weekends
- Contract Terms: Determine working days for payment terms and contract durations
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Pre-loaded 2025-2026 Indian national holidays include Republic Day, Holi, Ram Navami, Good Friday, Independence Day, Janmashtami, Gandhi Jayanti, Dussehra, Diwali, Guru Nanak Jayanti, and Christmas.
Republic Day · 26/01/2025Holi · 14/03/2025Ram Navami · 06/04/2025Good Friday · 18/04/2025Independence Day · 15/08/2025Janmashtami · 17/08/2025Gandhi Jayanti · 02/10/2025Dussehra · 02/10/2025
Days Until Calculator - How Many Days Until Your Event?
Count down to any future event with live updates. See days, weeks, months remaining plus real-time hours, minutes, and seconds countdown.
Days Remaining
8
Holi 2026
Target date: 03/03/2026 (Tuesday)
Weeks & days: 1 weeks 1 daysMonths & days: 0 months 8 daysYear progress: 14.7%
00:00:00
Live countdown (HH:MM:SS) Live
Tuesday
Day of Week
How to Use the Days Until Calculator
- Select your target date using the calendar picker
- Or click one of the preset buttons for popular Indian festivals
- See instant countdown in days, weeks, and months
- Watch the live countdown showing hours, minutes, and seconds
- Use for any upcoming event: weddings, exams, festivals, or vacations
Popular Countdowns
- Festival Celebrations: Days until Diwali, Holi, Eid, Christmas
- Personal Milestones: Wedding dates, birthdays, anniversaries
- Exam Preparation: Days until board exams, competitive exams, entrance tests
- Travel Planning: Days until your vacation or trip
- Product Launches: Countdown to product release dates
- Event Management: Days remaining until conferences, webinars, workshops
- Financial Planning: Days until tax filing deadline, FD maturity
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Frequently Asked Questions About Date Calculators
How do I calculate the number of days between two dates?
Select your start date and end date using our Days Between Dates calculator above. The tool instantly shows the total days, along with a breakdown in years, months, weeks, and even hours. You can also choose to include or exclude the end date in your calculation. The calculator handles all month-end complexities, leap years, and varying month lengths automatically.
Does the calculator include the start and end dates?
By default, we exclude the end date (counting method used in most business calculations). However, you can tick the "Include end date" checkbox if you need both dates counted. This is particularly useful when calculating project timelines or rental periods where both the start and end dates are part of the duration.
How are business days calculated?
Our business days calculator automatically excludes Saturdays and Sundays from the count. You can also enable the "Exclude Indian holidays" option to remove national holidays like Republic Day, Independence Day, Diwali, and Holi from your calculation. This gives you accurate working days for project planning and notice period calculations in the Indian context.
Can I calculate my age in months and days?
Yes! Our age calculator provides your exact age broken down into years, months, and days. It also shows your total age in months, weeks, days, and even hours. Plus, you'll see what day of the week you were born on and how many days until your next birthday. This is especially useful for tracking baby ages, planning milestone birthdays, or calculating exact age for official documents.
What is the most accurate way to add days to a date?
Use our Add/Subtract Days calculator by entering your starting date and the number of days to add. The tool handles month-end dates, leap years, and varying month lengths automatically. For example, adding 30 days to January 31st correctly gives you March 2nd (or 3rd in leap years). You can also use quick buttons for common periods like 30, 60, 90, or 180 days.
Are Indian holidays included in business days calculation?
Yes! We've pre-loaded all major Indian national holidays for 2025 and 2026, including Republic Day (26 Jan), Independence Day (15 Aug), Gandhi Jayanti (2 Oct), Diwali, Holi, and more. Simply check the "Exclude Indian holidays" box in the Business Days calculator. You can also add custom holidays specific to your organisation or state.
How many working days are there in a month in India?
On average, a month has approximately 22 working days in India when excluding weekends (Saturdays and Sundays). However, this varies based on the specific month and whether it contains any national holidays. For example, October typically has fewer working days due to Dussehra and Diwali. Use our business days calculator to get the exact count for any date range.
Can I calculate days until a future event?
Absolutely! Use the Days Until calculator to count down to any future date. We've included preset buttons for popular Indian festivals like Diwali, Holi, and national celebrations. The calculator shows days, weeks, months remaining, plus a live countdown in hours, minutes, and seconds that updates in real-time. Perfect for event planning, exam preparation, or vacation countdowns.
How do I calculate a 90-day notice period?
Use the Add/Subtract Days calculator and select today's date (or your resignation date), then add 90 days. The calculator will show you the exact end date of your notice period. Alternatively, use the Business Days calculator if your company counts only working days for notice periods, and enable the "Exclude Indian holidays" option for accurate results.
What date format does the calculator use?
Our calculators display dates in DD/MM/YYYY format, which is the standard format used in India. For example, 15th August 2025 is shown as 15/08/2025. The input fields use your browser's native date picker, which adapts to your regional settings automatically.
👨💻 About Author
This date calculator has been developed and fact-checked by S. Prakash Yadav and the team at StarAiWeb Consulting. S. Prakash Yadav is an AI, Software Architect, and Full Stack Developer with over 20+ years of experience guiding organizations in transforming ambitious ideas into scalable, cloud-native solutions. His career has focused on building intelligent, LLM-powered applications and architecting robust enterprise platforms.
Professional Credentials: With expertise in Azure OpenAI, LangChain, advanced vector databases (Milvus, FAISS, Pinecone), and modern front-end development with Angular and React, S. Prakash Yadav brings deep technical knowledge to ensure all calculators use industry-standard formulas and best practices. View full expert bio and credentials →
Math Verified: All formulas and calculations have been verified by our team of engineers and mathematicians to ensure bank-level accuracy. We regularly audit our calculators to maintain the highest standards of precision.
Regular Updates: Our calculators are continuously updated to reflect changes in standards and best practices. You can trust that you're getting the most current and accurate calculations available.