Universal time made local

UTC Time Converter

Translate Coordinated Universal Time into a local named zone, or convert local civil time back to UTC.

✓ 日時の計算内容は保存されません。

結果

Your result will appear here.

使い方

Convert UTC to local time zones, or local time back to UTC. Inputs are validated and calculations use PHP’s calendar and IANA time-zone support.

Example

Choose realistic dates or zones, calculate, then copy or bookmark the resulting URL. The query values make a calculation easy to revisit without storing it in an account.

Frequently asked questions

Is UTC affected by daylight saving time?

No. UTC does not move seasonally.

Why use a named zone instead of an offset?

Named zones preserve seasonal and historical clock rules.