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Time Zone Offset Converter — result sheet
Convert a date and time between two fixed UTC offsets without pretending to know city daylight-saving rules.
Inputs used
Results
Visual chart
Breakdown
Calculation steps
Returned data table
Formula and methodology
Formula: Convert source local time to UTC by subtracting its offset, then add the target offset.
Fixed offsets are useful for transparent arithmetic, while city/time-zone databases require changing daylight-saving and historical rules.
This result follows the calculator's declared inputs, precision, validation boundaries, and model limits.
Input contract
- Source date
- Source time — Use 24-hour HH:MM.
- Source UTC offset — hours; minimum -12; maximum 14
- Target UTC offset — hours; minimum -12; maximum 14
Worked example
| Input | Value |
|---|---|
| Source date | 2026-01-15 |
| Source time | 12:00 |
| Source UTC offset | 0 |
| Target UTC offset | 5.5 |
12:00 UTC converts to 17:30 at UTC+5.5 on the same date.
Assumptions and limits
- Offsets are fixed numeric UTC offsets for the entered date.
- City names, DST transitions, historical rules, and future rule changes are not inferred.
Calculator note
Source and methodology
Use the official WorldCalculate methodology policy for the source, formula, precision, and boundary standards behind this calculator.
Planning estimate, not financial, medical, legal, or professional advice. © WorldCalculate — reuse with attribution. Built and curated by Hassan ALRowaie.
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