Common uses
- Notice periods & deadlines: add 30/60/90 days to a resignation or contract date.
- Cheque validity: cheques are valid 3 months from the date written.
- Visa & document expiry: count days remaining precisely.
- Project planning: weekday count excludes weekends (public holidays vary by state, so verify separately).
FAQs
Is the end date included in the count?
The difference counts nights between dates (2 Jan − 1 Jan = 1 day). For "inclusive of both dates" counting — common in leave applications — add 1.
Does it handle leap years?
Yes, all calculations use real calendar dates including leap years.