Day Counter
Count the number of days, weeks and months between two dates. Ideal for deadlines, due dates, anniversaries and project planning.
What is Day Counter?
Calculates the difference in days, weeks, months and years between two dates. Useful for counting days until an event (wedding, trip, exam), time since an important date, or checking contract deadlines. Also shows the result in hours, minutes and seconds.
How to use
- Pick a start date and an end date.
- See the result in multiple formats: days, weeks, months, years.
- Swap the dates if the end is earlier — the result goes negative.
- Include or exclude the start day to match your convention.
Frequently asked questions
How is the difference calculated?
We compute the absolute difference in milliseconds between the two dates and convert it to whole days, so the result is always positive.
Are months exact?
Months are an approximation using 30.44 days per month (the average month length over a year).
Does it include the start or end date?
The result is the number of full days between the two dates and does not add an extra day for the start or end.