Calculate days between dates
Select a date
Check the remaining days until a specific date in real-time.
Count down to important dates like exams, anniversaries, or events.
Compare multiple dates and manage your schedule efficiently.
An online tool that calculates the number of remaining or elapsed days until a specific date. Set start and target dates to display remaining days in D-Day format and convert to weeks, months, hours, and minutes.
Set the Start Date
Choose the reference date in the start date field. It defaults to today.
Set the Target Date
Choose the date you want to use as D-Day in the target date field.
Review the Result
The D-Day value appears automatically with the remaining or elapsed time in days, weeks, months, hours, and minutes.
It calculates the difference between the start date and target date in days. A future target appears as 'D-number,' while a past target shows the number of days elapsed.
D-Day indicates the number of days remaining until a target date, while D+number indicates the number of days elapsed since a specific date.
Yes. Along with days, the result includes equivalent values in weeks, months, hours, and minutes.
Yes. When the start date is earlier than the target date, the elapsed days are calculated and displayed automatically.
Click the refresh icon at the top to reset the start date to today.