Time Converter

This tool computes the local time in London for a given Dallas input, accounting for date and time values and daylight saving rules. It accepts a date, a time, and an optional time zone hint for Dallas, then outputs the corresponding London time and the resulting date if the day changes during the conversion.
Core logic validates inputs, interprets Dallas time as America/Chicago, applies IANA tz database transitions to determine the London offset on the specified date, performs the conversion, and returns the London time with explicit offset. The tool supports 24-hour and 12-hour display modes, and can emit an ISO 8601 timestamp for unambiguous interoperability.
Use cases include scheduling cross-timezone meetings, travel planning, global team coordination, and support operations requiring precise timing across US and UK business hours. It helps reduce miscommunication from time zone errors and supports audit-friendly time stamps in logs.
Unique differentiators include robust DST handling across historical and future dates, deterministic offsets, and a minimal yet complete output set suitable for automation and reporting.