Days Counter Tool
Calculate days between two dates instantly. Shows business days, weeks, years/months/days, and Japanese era display. Real-time results with no button clicks needed.
Business Day Details (Excluded Holidays)
How to Use
Enter Start and End Dates
Enter the start and end dates using the date inputs. Click "Today" for quick input. The start date defaults to today.
View Real-time Results
Results update instantly as you type. View days, weeks + days, years/months/days, business days (excluding weekends & holidays), and Japanese era at a glance.
Copy and Share Results
Click "Copy Result" to copy the calculation results to your clipboard in text format. Share via email, chat, or social media.
About Days Counter
A web tool that instantly calculates the number of days between two dates. Features business day counting (excluding weekends and Japanese holidays), weeks + days conversion, years/months/days breakdown, and Japanese era display. All processing happens in your browser - no data is sent to any server.
Features
- Real-time CalculationResults appear instantly as you enter dates. No button clicks needed - days, weeks, years, and business days update immediately.
- Business Day CountingAutomatically excludes weekends and 16 Japanese national holidays. View the list of excluded holidays in detail.
- Multiple Unit DisplayView results in days, weeks + days, and years + months + days. Choose the format that suits your needs.
- Japanese Era SupportAutomatically displays the Japanese era (Reiwa, Heisei, Showa, etc.) for both start and end dates.
Use Cases
- Count days since you started dating or got married
- Calculate days since joining or leaving a company
- Track project elapsed days
- Count days since a baby was born
- Calculate remaining contract days and business days