Timezone Offset Calculator

Enter an IANA timezone (e.g. America/New_York) or an offset in hours (e.g. -5). We show the current offset and a sample date.

Timezone offset

Timezone (e.g. America/New_York) or offset hours (-5)

Offset

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How it works

We use Intl.DateTimeFormat with timeZone to get the offset, or we compute from the offset hours for UTC±N.

When to use it

Use when converting between zones or debugging timezone logic.

Frequently asked questions

DST?

IANA zones include DST. Offset hours are fixed.