Time · Planning
Days Between Dates — Deadline & Countdown Calculator
Calculate the exact number of days, weeks, and months between any two dates. Perfect for project deadlines, contract durations, countdowns, and planning.
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Days between dates
Pick two dates above
Common uses for date difference calculations
- Project deadlines: How many days from project kick-off to delivery date
- Visa duration: How many days of stay remaining on a visa
- Contract periods: Length of a lease, employment contract, or service agreement
- Pregnancy: How many weeks or days until due date
- Countdowns: Days until an event, holiday, or important date
Frequently asked questions
Our calculator shows total days. To find working days (excluding weekends), subtract approximately 2 days per week in the period. For exact working day counts excluding holidays, use a dedicated business day calculator.
A standard year has 365 days. A leap year (divisible by 4, except centuries unless divisible by 400) has 366 days. The next leap year after 2026 is 2028.
Our calculator shows approximate months. For billing, rental, and contract purposes, the method used varies — some count calendar months, others use 30-day periods.