Date Difference Calculator
Days, weeks and months between two dates — or add days to a date.
Result
How to use
- 1
Pick a start and end date to see the gap.
- 2
Or pick a date and add or subtract days.
- 3
Results update as you change the dates.
Questions
Are weekends counted?
The total counts every day. The weekdays figure counts Monday to Friday only and does not know about public holidays.
Should I include the end date?
Tick it when counting both the first and last day, like leave days or a hotel stay of nights plus one.
About this Date Difference tool
Date Difference Calculator — Days, weeks and months between two dates — or add days to a date. It is one of 200 free tools on namasivayam.in, made by software engineer Namasivayam Vadivelan for everyday use in India.
Everything is calculated instantly in your browser: nothing you type or upload is sent to any server, there is no sign-up, and it works on mobile and desktop. Pick a start and end date to see the gap.
Related reading
Articles that go with this tool
How to File an RTI Application: A Step-by-Step Guide to the RTI Act, 2005
For just ₹10, any Indian citizen can ask a government office for information — and get an answer within 30 days. How to write an RTI, where to send it, what to do if there’s no reply, and a 2025 change to know about.
One Phone-Free Sunday: What a Day Without Scrolling Taught Me
I switched off my phone for one full Sunday. The first hour was hard, the rest of the day was the calmest I’d had in months. Here’s what happened, and how you can try it too.
Kids and Screens: A Practical Guide to Healthy Screen Time for Indian Families
Phones keep kids quiet — but at what cost? What WHO recommends for young children, warning signs to watch, and simple family rules that actually work.
Related tools
More date & time tools you may like
Results are estimates to help you plan. They are not financial, tax or medical advice.