Time Zone Converter
Convert times between IANA time zones, DST-accurate.
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Time in target zone
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Offset difference
The zone list comes from your browser’s own IANA database, so daylight-saving rules are exact for the chosen zones and date — including the DST dates that trip up manual UTC math.
使い方
- すべてブラウザ内でローカルに動作します。データは送信されず、アカウントも不要です。
概要
Pick a date, time and two IANA zones to see the meeting time converter result with the full offset names — using your browser’s own timezone database, so DST rules are exact.
The two-pass DST handling means dates inside DST transitions (spring-forward gaps) resolve sensibly rather than shifting by an hour unnoticed.
すべてブラウザ内でローカルに動作します。データは送信されず、アカウントも不要です。
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