ZoneShift is a free, browser-based time zone conversion tool that converts Coordinated Universal Time (UTC) to any local time zone or world time zone. Developed and maintained as an independent project, the tool operates entirely within the user's browser without requiring any server-side processing, data collection, or user registration. Its primary function is to provide accurate, real-time time conversions that automatically account for Daylight Saving Time (DST) transitions by using standard IANA time zone identifiers, such as "America/New_York" or "Europe/London," rather than hardcoded UTC offsets. The tool's main features include automatic DST awareness, local client-side computation using standard JavaScript Intl.DateTimeFormat and Date APIs, and a completely free service supported by non-intrusive advertising. ZoneShift does not store any conversion queries, track individual users, or collect personal data such as names, email addresses, or IP addresses through the conversion tool itself. The application is designed to work on any modern web browser with no downloads or installations required. Typical use cases for ZoneShift include remote workers coordinating across global teams, developers needing to interpret UTC timestamps from logs or databases, and anyone who requires accurate time conversions without the clutter of additional features or sign-up barriers. The workflow is straightforward: a user enters a UTC time, selects a target time zone, and the converted local time is displayed instantly. All calculations are performed locally, ensuring results are as accurate as the operating system's time zone database. Technically, ZoneShift is a fully client-side web application that relies on the browser's built-in time zone data. It does not transmit any date, time, or time zone values to external servers. The site is run transparently as a solo independent project, with user feedback directly influencing future improvements. For inquiries, support, or privacy concerns, users can contact the site administrator directly via email, with responses typically provided within two to three business days.