Add Weeks to a Date
A focused date and time tool to move a calendar date forward by an exact number of weeks.
Add Weeks to a Date
Tool inputs are not stored, and private values stay out of analytics.
Result
How it works
Enter ISO-formatted dates or local date-times, choose the stated options, then review the result and its supporting details.
The Add Weeks to a Date has one defined job: move a calendar date forward by an exact number of weeks. The browser parses an ISO calendar value and performs the calculation with UTC calendar arithmetic, so month ends, leap years, and reversed ranges remain deterministic. Inputs stay in the browser and are not stored by ABC7.
Examples
Boundary example
Boundary cases make the date rule visible instead of hiding it behind a rounded number.
Time-zone example
The browser parses an ISO calendar value and performs the calculation with UTC calendar arithmetic, so month ends, leap years, and reversed ranges remain deterministic.
FAQ
Which date format should I enter?
Use the ISO format YYYY-MM-DD for dates. Local date-time fields use YYYY-MM-DDTHH:mm so day and month cannot be confused.
Are leap years and month ends handled?
Yes. The tool validates real Gregorian dates and includes edge cases such as February 29 and year boundaries.
Does the tool save my dates or times?
No. Processing runs in the browser and the entered values are not stored.