Chicago to London to Tokyo to Sydney Time Converter
Quick answers
Chicago to London
For most of the year, Chicago is 6 hours behind London. During seasonal clock changes, Chicago is 5 hours behind London.
For most of the year, working hours of 9:00 am to 5:00 pm in Chicago correspond to 3:00 pm to 11:00 pm in London. During seasonal clock changes, working hours of 9:00 am to 5:00 pm in Chicago correspond to 2:00 pm to 10:00 pm in London.
Chicago to Tokyo
For most of the year, Chicago is 14 hours behind Tokyo. During seasonal clock changes, Chicago is 15 hours behind Tokyo.
For most of the year, working hours of 9:00 am to 5:00 pm in Chicago correspond to 11:00 pm to 7:00 am (next day) in Tokyo. During seasonal clock changes, working hours of 9:00 am to 5:00 pm in Chicago correspond to 12:00 am (next day) to 8:00 am (next day) in Tokyo.
Chicago to Sydney
Depending on seasonal clock changes, Chicago is 15 hours behind Sydney, Chicago is 16 hours behind Sydney, or Chicago is 17 hours behind Sydney.
Depending on seasonal clock changes, working hours of 9:00 am to 5:00 pm in Chicago correspond to 12:00 am (next day) to 8:00 am (next day) in Sydney, working hours of 9:00 am to 5:00 pm in Chicago correspond to 1:00 am (next day) to 9:00 am (next day) in Sydney, or working hours of 9:00 am to 5:00 pm in Chicago correspond to 2:00 am (next day) to 10:00 am (next day) in Sydney.
Compare Chicago time with London, Tokyo, and Sydney time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
CST (Central Standard Time) is 6 hours behind GMT (Greenwich Mean Time) and 15 hours behind JST (Japan Standard Time) and 17 hours behind AEDT (Australian Eastern Daylight Time)
6:00 am06:00 in Chicago, IL, USA is 12:00 pm12:00 in London, United Kingdom and is 9:00 pm21:00 in Tokyo, Japan and is 11:00 pm23:00 in Sydney, Australia
Chicago to London call time
Best time for a conference call or a meeting is between 9am-11am in Chicago which corresponds to 3pm-5pm in London
Chicago to Tokyo call time
Best time for a conference call or a meeting is between 5pm-6pm in Chicago which corresponds to 8am-9am in Tokyo (next day)
Chicago to Sydney call time
Best time for a conference call or a meeting is between 4pm-5pm in Chicago which corresponds to 9am-10am in Sydney (next day)
6:00 am06:00 CST (Central Standard Time) (Chicago, IL, USA). Offset UTC -6:00 hours
12:00 pm12:00 GMT (Greenwich Mean Time) (London, United Kingdom). Offset UTC 0:00 hours
9:00 pm21:00 JST (Japan Standard Time) (Tokyo, Japan). Offset UTC +9:00 hours
11:00 pm23:00 AEDT (Australian Eastern Daylight Time) (Sydney, Australia). Offset UTC +11:00 hours
6:00 am06:00 Chicago, IL, USA / 12:00 pm12:00 London, United Kingdom / 9:00 pm21:00 Tokyo, Japan / 11:00 pm23:00 Sydney, Australia
| Chicago, IL, USA | London, United Kingdom | Tokyo, Japan | Sydney, Australia |
|---|---|---|---|
| 12am (midnight) | 6am | 3pm | 5pm |
| 1am | 7am | 4pm | 6pm |
| 2am | 8am | 5pm | 7pm |
| 3am | 9am | 6pm | 8pm |
| 4am | 10am | 7pm | 9pm |
| 5am | 11am | 8pm | 10pm |
| 6am | 12pm (noon) | 9pm | 11pm |
| 7am | 1pm | 10pm | 12am (midnight) |
| 8am | 2pm | 11pm | 1am |
| 9am | 3pm | 12am (midnight) | 2am |
| 10am | 4pm | 1am | 3am |
| 11am | 5pm | 2am | 4am |
| 12pm (noon) | 6pm | 3am | 5am |
| 1pm | 7pm | 4am | 6am |
| 2pm | 8pm | 5am | 7am |
| 3pm | 9pm | 6am | 8am |
| 4pm | 10pm | 7am | 9am |
| 5pm | 11pm | 8am | 10am |
| 6pm | 12am (midnight) | 9am | 11am |
| 7pm | 1am | 10am | 12pm (noon) |
| 8pm | 2am | 11am | 1pm |
| 9pm | 3am | 12pm (noon) | 2pm |
| 10pm | 4am | 1pm | 3pm |
| 11pm | 5am | 2pm | 4pm |
| 00:00 | 06:00 | 15:00 | 17:00 |
| 01:00 | 07:00 | 16:00 | 18:00 |
| 02:00 | 08:00 | 17:00 | 19:00 |
| 03:00 | 09:00 | 18:00 | 20:00 |
| 04:00 | 10:00 | 19:00 | 21:00 |
| 05:00 | 11:00 | 20:00 | 22:00 |
| 06:00 | 12:00 | 21:00 | 23:00 |
| 07:00 | 13:00 | 22:00 | 00:00 |
| 08:00 | 14:00 | 23:00 | 01:00 |
| 09:00 | 15:00 | 00:00 | 02:00 |
| 10:00 | 16:00 | 01:00 | 03:00 |
| 11:00 | 17:00 | 02:00 | 04:00 |
| 12:00 | 18:00 | 03:00 | 05:00 |
| 13:00 | 19:00 | 04:00 | 06:00 |
| 14:00 | 20:00 | 05:00 | 07:00 |
| 15:00 | 21:00 | 06:00 | 08:00 |
| 16:00 | 22:00 | 07:00 | 09:00 |
| 17:00 | 23:00 | 08:00 | 10:00 |
| 18:00 | 00:00 | 09:00 | 11:00 |
| 19:00 | 01:00 | 10:00 | 12:00 |
| 20:00 | 02:00 | 11:00 | 13:00 |
| 21:00 | 03:00 | 12:00 | 14:00 |
| 22:00 | 04:00 | 13:00 | 15:00 |
| 23:00 | 05:00 | 14:00 | 16:00 |
Chicago Information
Time Zone
CST - Central Standard Time
-6:00 hours during Central Standard Time.
Sunday, March 8, 2026 at 2:00 am local time. DST starts annually on the 2nd Sunday of March. Clocks are turned forward 1 hour to Sunday, March 8, 2026 at 3:00 am local daylight time instead. Also called Spring Forward or Summer Time.
Sunday, November 1, 2026 at 2:00 am local time. DST ends annually on the 1st Sunday of November. Clocks are turned backward 1 hour to Sunday, November 1, 2026 at 1:00 am local standard time instead. Also called Fall Back or switch to Winter Time.Chicago Facts
London Information
Time Zone
GMT - Greenwich Mean Time
+0:00 hours during Greenwich Mean Time.
Sunday, March 29, 2026 at 1:00 am local time. DST starts annually on the last Sunday of March. Clocks are turned forward 1 hour to Sunday, March 29, 2026 at 2:00 am local daylight time instead. Also called Spring Forward or Summer Time.Sunday, October 25, 2026 at 2:00 am local time. DST ends annually on the last Sunday of October. Clocks are turned backward 1 hour to Sunday, October 25, 2026 at 1:00 am local standard time instead. Also called Fall Back or switch to Winter Time.London Facts
Tokyo Information
Time Zone
Tokyo Facts
Sydney Information
Time Zone
AEDT - Australian Eastern Daylight Time
+11:00 hours during Australian Eastern Daylight Time.
Sunday, October 4, 2026 at 2:00 am local time. DST starts annually on the 1st Sunday of October. Clocks are turned forward 1 hour to Sunday, October 4, 2026 at 3:00 am local daylight time instead. Also called Spring Forward or Summer Time.
Sunday, April 5, 2026 at 3:00 am local time. DST ends annually on the 1st Sunday of April. Clocks are turned backward 1 hour to Sunday, April 5, 2026 at 2:00 am local standard time instead. Also called Fall Back or switch to Winter Time.