My Time Converter

Purpose & User Intent: The tool converts duration values between standard time units (milliseconds, seconds, minutes, hours, days) and is designed for developers, data analysts, project managers, and educators who compare durations or normalize data. When minutes or hours appear in logs, reports, or schedules, this tool provides exact equivalence to other units for consistency and aggregation. Core logic maps input values to a base unit (seconds) and re-expresses in the target unit, ensuring reproducible results. Core Logic & Features: Required inputs: value (numeric), from_unit, to_unit. System validates units, handles decimal values, and returns a single converted value with the chosen unit. Advanced features (optional): support for negative durations, fractional units, alias names (ms, s, min, hr, d), bulk-ready formatting, and locale-aware numeric output for downstream apps. Features emphasize robust unit normalization, precision control, and clear result formatting. Inputs & Outputs: Inputs: value (number, units: milliseconds, seconds, minutes, hours, days), from_unit (string), to_unit (string). Output: converted_value (number), unit (string). Formatting: default to two decimals when needed; integers shown without trailing zeros. Algorithms & Calculations: Convert by factor: duration_in_seconds = value × factor(from_unit); where factors: ms=0.001, s=1, min=60, hr=3600, d=86400. Then result = duration_in_seconds / factor(to_unit). Edge cases: identical units return input; non-supported units raise error; non-numeric value triggers error handling. Error & Edge Cases: Invalid or missing inputs produce domain-safe errors; negative values are allowed; large values may trigger overflow checks; decimals limited to reasonable precision; missing units: require both from_unit and to_unit. Industry/Region & Localization: Uses SI-based time units; supports optional locale formatting; currency not involved; no timezone semantics. Assumptions & Exclusions: Assumes numeric input and valid unit labels; does not parse textual times or calendars; not performing calendar arithmetic or timezone shifting; not a bulk API; not handling non-standard time units beyond the five listed.