Date Calculator
Calculate date differences or add/subtract days from any date
Days Between Two Dates
Difference:
Add or Subtract Days
Result:
Date calculator usage examples
This date calculator helps with everyday questions such as contract end dates, project timelines, vacation length and countdowns. It saves you from manually counting days on a calendar.
Common use cases
- Calculate how many days lie between two dates, for example from contract start to expiration
- Find the date that is a certain number of days before or after a starting date
- Roughly plan project milestones by adding work days or calendar days to a kick‑off date
- Measure the length of a vacation or business trip without miscounting days
Practical tips
- Use “Days Between Two Dates” when you already know both the start date and the end date.
- Use “Add or Subtract Days” when you know the start date and the number of days to offset.
- If you need working days only, first calculate calendar days here and then adjust for weekends and holidays.
All calculations run purely in the browser without server‑side logic, so you can use it quickly and offline‑friendly.