How Many Days Ago?

How many days ago calculation is a tool that allows you to easily calculate how many days ago the "target date" is. It can automatically calculate the date how many days ago today.
How to Use
- Select the "Target Date". The default is "Today's" date.
- Enter "How many days ago" you want to calculate.
- The system will automatically calculate both "The date X days ago (including today)" and "The date X days ago (excluding today)".
How to Calculate "How Many Days Ago?"
"How many days ago?" means calculating the difference in days between today's date and the target date.
Calculation Steps
- Check today's date
- Determine the target date
- Calculate the difference between the two dates to find the number of days
Example Calculation
If today is May 19, 2025 and the target date is May 10, 2025:
→ It would be 9 days ago.
Key Points
- The same day is "0 days ago"
- For future dates, we say "X days from now"
- Typically counts "excluding the start date" (elapsed days)
Notes
This tool is available for free.
*This program was created and tested using PHP8.2.22.
*Please send us your opinions and requests (requests for improvements) for all users.