Timetate
A world clock on a live 3D globe. Put Sydney and Chicago on it side by side.
🇦🇺 Sydney (UTC+10) · 🇺🇸 Chicago (UTC−5) · 15 hours difference — Sydney is ahead
Best Time to Meet
No standard business-hours overlap. Extended window: 10:00–10:00 in SydneyAt least one city will be in early morning or evening hours.
24-Hour Schedule
| City | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 🇦🇺 Sydney | 10:00 | 11:00 | 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 17:00 | 18:00 | 19:00 | 20:00 | 21:00 | 22:00 | 23:00 | 00:00 | 01:00 | 02:00 | 03:00 | 04:00 | 05:00 | 06:00 | 07:00 | 08:00 | 09:00 |
| 🇺🇸 Chicago | 19:00 | 20:00 | 21:00 | 22:00 | 23:00 | 00:00 | 01:00 | 02:00 | 03:00 | 04:00 | 05:00 | 06:00 | 07:00 | 08:00 | 09:00 | 10:00 | 11:00 | 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 17:00 | 18:00 |
Quick Reference
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Open Meeting Planner →Calls between Sydney and Chicago usually connect finance and mining head offices on one side with finance and derivatives and logistics on the other. Put simply, when it is 09:00 in Chicago it is already 15 hours later in Sydney, on the following date.
Both cities work Monday to Friday, Sydney typically 09:00–17:30 and Chicago 08:30–17:30 local time. Watch for Australia Day (26 January) and Anzac Day (25 April) in Sydney and Thanksgiving (fourth Thursday of November, with the Friday) and Independence Day (4 July) in Chicago.
The office days never overlap; the workable slots are Chicago's early morning against Sydney's evening. Rotate the inconvenience rather than fixing it on one side. Each side observes daylight saving on its own schedule; the gap moves twice a year and back again.
Sydney is 15 hours ahead of Chicago. The gap changes by an hour around the clock changes.
There is no hour when both offices are open. The closest is early morning in Chicago against the end of the day in Sydney; alternate which side takes the awkward slot.
Alternate. A standing call that is always 07:00 for Chicago or always 19:00 for Sydney is resented within a month; rotating it keeps both sides in the room.
Not always. At 09:00 in Chicago it is already the next calendar day in Sydney, so every invitation should carry the date in both cities.
Explore city time zones
Other meeting times with Chicago
Times on this page were calculated on .