UTC Offset Time Converter

Convert a date and time between two UTC offsets. Enter the correct offset for each location on that date, including any daylight-saving adjustment.

Calculate

Use a decimal point, without thousands separators. Prefilled values are editable examples.

Enter your values and select Calculate.

Formula and calculation method

Destination time = source time + destination offset − source offset.

Worked example

18:00 at UTC+2 becomes 12:00 at UTC−4 on the same day. Changing 23:30 from UTC−4 to UTC+2 gives 05:30 on the next day.

Assumptions and limitations

This tool uses manual offsets, not a city time-zone database. A location can change its offset during the year. Local times around a daylight-saving transition can be ambiguous or nonexistent; this calculator does not resolve those cases.

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English edition: 16 September 2026.