Date Difference Calculator — Days Between Dates
Find the exact difference between any two dates in years, months, weeks, and days. Also shows total calendar days, estimated working days, and total hours. Leap year aware. Useful for notice periods, compliance deadlines, project timelines, loan tenures, GST filing, ITR due dates, and tax residency calculations.
Calculate Date Difference
How to Use
Select start and end dates. The calculator auto-swaps if end is before start and shows the difference in multiple formats. Works for both past and future dates. Useful for tracking compliance deadlines under Income Tax Act and GST Act timelines.
CA Tip: Key dates to track: ITR due Jul 31 / Sep 30 / Nov 30. GSTR-9 by Dec 31. Section 6 residency requires 182+ days in India. Rule 37 requires payment within 180 days of invoice for ITC. Use this tool to count exact days for all these compliance requirements.
Key Indian Compliance Deadlines
| Filing | Due Date | Late Penalty |
|---|---|---|
| ITR (non-audit) | July 31 | ₹5,000 / ₹10,000 |
| ITR (audit cases) | September 30 | ₹5,000 / ₹10,000 |
| ITR (transfer pricing) | November 30 | ₹5,000 / ₹10,000 |
| GSTR-3B | 20th of next month | ₹50/day + 18% interest |
| GSTR-9 | December 31 | ₹200/day (max 0.5% TO) |
| TDS Return | Quarterly (31st) | ₹200/day (Sec 234E) |
| DIR-3 KYC | September 30 | ₹5,000 + DIN deactivation |
Tax Residency — 182-Day Rule
Under Section 6 of the Income Tax Act, an individual is considered resident in India if present for 182 days or more in the financial year (April 1 to March 31). Alternatively, 60 days in the current year plus 365 days in the preceding 4 years also qualifies (with exceptions for Indian citizens going abroad). Use this calculator to count your exact days in India between travel dates.
Days in Each Month
| Month | Days | Month | Days |
|---|---|---|---|
| January | 31 | July | 31 |
| February | 28/29 | August | 31 |
| March | 31 | September | 30 |
| April | 30 | October | 31 |
| May | 31 | November | 30 |
| June | 30 | December | 31 |
Need compliance help? Our CAs track all filing deadlines for ITR, GST, TDS, and ROC. Talk to a CA →
