Chicago to Tokyo
time converter.
Tokyo is 15 hours ahead of Chicago during Chicago’s standard time and 14 hours ahead during Chicago’s daylight saving time. Tokyo often falls on the next calendar day.
Convert a date and local time
All dates are local to the named city. If a time occurs twice when clocks go back, the earlier occurrence is used and a warning appears. Skipped times are flagged.
Daylight saving and the time difference
Tokyo uses Japan Standard Time at UTC+09:00 throughout the year. Chicago changes between UTC−06:00 and UTC−05:00 under the US daylight saving schedule. This changes the gap by one hour even though Tokyo does not adjust its clock.
Time-zone rules come from your browser’s IANA time-zone data. Keep your browser updated and confirm important travel times with the provider.
Planning a meeting
The usual 09:00–17:00 working day has no shared one-hour slot between these cities. A 07:00 Chicago call reaches Tokyo at 22:00 in Chicago’s winter or 21:00 in its summer. A late-afternoon Chicago call reaches Tokyo the following morning. Consider rotating early and late calls between teams.
Plan a meeting across multiple cities →Hourly meeting options
Each row starts a one-hour meeting on your selected date in the starting city. “Fits both” means the entire hour falls between 09:00 and 17:00 in both cities; weekends and holidays are not checked.
| Chicago | Tokyo | 09:00–17:00 fit |
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Related clocks and tools
Reference sources: UK clock changes, US daylight saving rules, and Japan Standard Time.