Date Difference Calculator - Find Days and Weeks Between Dates

Calculate how many days or weeks are between two dates.

Last updated: June 2026 for FY 2025-26Formula verified against RBI / government guidelinesReviewed by Jashmin, Finance Professional
100% private: All calculations run in your browser. Your numbers never leave your device — no server, no storage, no account required.

Calculate Date Difference

Date Range

Choose the start and end dates.

Start DateEnd DateAction

Total Days

9

Weeks

1.29

How to Use This Date Difference Calculator

Using our Date Difference Calculator is simple and takes just a few seconds. Enter your values using the sliders or input fields above, and the results will update instantly — no need to click a calculate button.

All calculations are performed in your browser using standard financial formulas. Your data is never stored or transmitted to any server, ensuring complete privacy.

The results shown are estimates based on the inputs you provide. For precise figures, consult with your bank or financial advisor. Use this tool for quick comparisons, planning, and understanding how different variables affect your financial outcomes.

Formula & Explanation

Difference in Days = End Date - Start Date

The result is shown in both total days and weeks for easy planning.

Benefits

  • Fast date span calculation
  • Helps with deadline tracking
  • Easy weekly conversion

Use Cases

  • Project milestones
  • Leave duration
  • Event planning

About Date Difference Calculator

This tool helps you quickly measure the gap between two important dates for project planning, events, billing cycles and deadlines.

Frequently Asked Questions

Subtract the earlier date from the later date. For example, from January 1, 2025 to December 31, 2025 is 364 days. This is useful for tracking contract durations, loan tenures, project deadlines and leave balances. In India, earned leave accrual and LTA eligibility are often calculated on the basis of days of service in a year. Use the free Date Difference Calculator on AbacusHand to calculate your exact result instantly.

Divide the total number of days by 7 to get weeks. For example, 91 days between two dates equals exactly 13 weeks. This is useful for project planning (sprint cycles of 2 weeks), academic calendars and subscription billing. A 6-month internship from July 1 to December 31 spans 183 days or about 26 weeks. Use the free Date Difference Calculator on AbacusHand to calculate your exact result instantly.

For short-term loans or overdraft facilities in India, interest is sometimes charged on a daily basis. Tenure in days = end date minus start date. For example, a 90-day bill discounting loan from April 1 to June 30 spans exactly 90 days. At 12% per annum, daily interest on ₹1 lakh = ₹1,00,000 × 12% ÷ 365 = ₹32.88 per day, totalling ₹2,959 for 90 days. Use the free Date Difference Calculator on AbacusHand to calculate your exact result instantly.

Under the Payment of Gratuity Act, an employee is eligible for gratuity after 5 years of continuous service (4 years and 240 days in some rulings). Service period is calculated from the date of joining to the date of leaving. For example, joining on March 15, 2018 and leaving on April 10, 2025 gives approximately 7 years and 26 days. Gratuity = Last drawn salary × 15/26 × number of years of service. Use the free Date Difference Calculator on AbacusHand to calculate your exact result instantly.

Subtract the date of birth from the current date to find exact age in days, then convert to years. This is important for government scheme eligibility — for example, PM Jan Dhan (18+ years), senior citizen benefits (60+ years), or child education schemes (under 14). If someone born on June 15, 2000 applies on June 11, 2026, they are 25 years and 361 days old — still under 26 for youth schemes. Use the free Date Difference Calculator on AbacusHand to calculate your exact result instantly.