Day Calculator
Calculate the number of days between two dates or add days to a date. Online calculator considering leap years, weekdays and holidays.
Calculate the number of days between two dates.
Note: These calculations are for informational purposes only and do not replace professional tax or financial advice. All information without guarantee.
Frequently Asked Questions
How many days does 2026 have?
2026 is not a leap year and has 365 days. The next leap year is 2028 (366 days).
How do I calculate legal deadlines correctly?
Under § 187 BGB a deadline starts the day after the triggering event. A 14-day period starting 1 March ends on 15 March. Check whether calendar or working days apply.
How do I calculate my age in days?
Enter your birthday as the start date and today as the end date. The calculator shows your life in days. On average a 30-year-old has already lived approx. 10,950 days.
Is the start date counted in the day difference?
It depends on context. For legal deadlines under BGB: the triggering event is not counted; the period starts the next day. For age: the birthday itself counts as day 0.
What is the Day Calculator?
The days calculator computes the number of days between two dates and finds a date by adding or subtracting days. It accounts for leap years and weekdays.
How does the Day Calculator work?
Enter two dates to get the difference in days, weeks, months and years. Or enter a start date and number of days to find the resulting date. Weekdays and public holidays can be optionally highlighted.
Key Data and Facts
Leap year: every 4 years (except centuries not divisible by 400). Leap year 2026: no (2028: yes). Months: 30 or 31 days (February 28/29). Public holidays in Germany: 9–13 depending on state.
Step-by-Step Guide
Step-by-step: 1. Date difference: enter start and end date. Result: days, weeks, months, years. 2. Date calculation: start date + X days = target date. Useful for deadlines, deliveries, holidays. 3. Legal deadlines: 14-day right of withdrawal. 4. Working days: subtract weekends and holidays. 5. Countdown: days to next birthday.
Calculation Example
1 January to 31 December 2026: 364 days. Right of withdrawal: purchase 15 March, deadline 29 March. Holiday: 15 July to 2 August = 18 days absence.
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