Offsets are not full time zones
UTC offsets are useful for rough conversions, but named time zones handle daylight saving time and historical rule changes. Use named-zone calendar tools for important meetings.
Example
If it is 14:00 at UTC+1 and you convert to UTC-5, the target time is 08:00 on the same date because the target offset is 6 hours behind.
Common mistakes
Do not assume a city always has the same offset all year. Many places change offset during daylight-saving periods, and some regions use half-hour or quarter-hour offsets.
Limitations
This calculator uses numeric UTC offsets only. It does not look up named time zones, local holidays, daylight-saving rules or historical clock changes.
Last reviewed: 2026-05-17