HALFDAY / LEGAL

Terms of Use

Last updated: August 11, 2026

General-purpose tool

Halfday provides calendar calculations for general planning and entertainment. Results are not legal, medical, financial or professional advice.

Calendar rules

The calculator adds six calendar months. If the destination month does not contain the original day, it uses the last valid day of that month. Local device date settings can affect which date is considered today.

No guarantee

We aim to provide useful results but do not guarantee that the site will always be available, error-free or suitable for every purpose. Verify important dates independently.

Acceptable use

Do not interfere with the site, attempt unauthorized access, automate abusive traffic or use the service in a way that violates applicable law.

Changes

Features and these terms may change. Material changes should be reflected by an updated date on this page.

Operator and contact

Halfday is an independently operated web tool available at halfbirthday.app. Questions about these terms can be sent to contact@halfbirthday.app.