Cộng hoặc trừ ngày
Start from any date and add or subtract years, months, weeks and days to find a new date, such as a due date, a deadline or a date 90 days ago. It also shows the day of the week.
Chạy trong trình duyệt. Tệp của bạn không bao giờ rời khỏi thiết bị.
Operation
Ngày kết quả
2026-12-12
Saturday, December 12, 2026
Cách hoạt động
- 01Choose the start date.
- 02Choose Add or Subtract and enter the amounts.
- 03Read the resulting date and weekday.
Câu hỏi thường gặp
What happens at the end of a month?
If the day does not exist in the new month, the last day of that month is used. For example, one month after 31 January is 28 or 29 February.
Can I subtract?
Yes. Switch to Subtract.
Is the time of day included?
No. It works with calendar dates only.
Is my file uploaded to a server?
No. Everything happens inside your browser on your own device. Your files are never sent to us or anyone else.
Is it free?
Yes. It is free to use, with no signup, no watermark and no daily limit.