Days between two dates, business days only, or add days to a date.
Difference
—
—
Years, months, days
—
Weeks
—
Hours
—
Weekend days in range
Business days exclude weekends only, not public holidays, which differ by country and employer.
How this works
Gap in days = End − Start
Inclusive count = gap + 1
Counting
1 Jan → 8 Jan
Used for
Gap (default)
7 days
"How long until"
Inclusive
8 days
Hotel nights, hire, leave
Business days
5 days
Notice periods, delivery
Business days exclude weekends only — not public holidays.
A year holds about 260 weekdays, near 250 after typical public holidays.
Months count as calendar months: 15 Jan → 15 Mar is exactly 2 months.
Should I include the end date?
For "how long until" questions, no. For counting the days a booking, rental or leave period covers, yes — otherwise you lose a day.
Does the business-days option remove public holidays?
No, weekends only. Public holidays differ by country and region, so subtract the ones that apply to you.
How many working days are in a year?
About 260 weekdays, dropping to roughly 250 after typical public holidays and 225-235 after annual leave.
What is the gap between two dates?
The number of days between them — 1 Jan to 8 Jan is a 7-day gap, or 8 days if you count both the start and end date. Enter your two dates above for an exact count in days, weeks, months and years.