Time difference
Chicago to Perth Time Difference
Perth is 13 hours ahead of Chicago — when it's 12:00 PM in Chicago, it's 1:00 AM the next day in Perth. (Chicago (America/Chicago, CDT); Perth (Australia/Perth, AWST).) Below: live local times, the best hours for a call, a full conversion table, and exact daylight-saving dates.
Perth is 13 hours ahead of Chicago. Standard 9 AM–5 PM business hours in Chicago and Perth do not overlap, so a live call needs one side outside normal hours. Clocks change on November 1, 2026, which briefly shifts the gap between Chicago and Perth — the converter on this page always reflects the correct offset for the date you pick.
- When it's 9:00 AM in Chicago, it's 10:00 PM in Perth.
- When it's 9:00 AM in Perth, it's 8:00 PM the previous day in Chicago.
Perth is currently 13 hours ahead of Chicago.
Interactive converter
12:00PM
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Best times to meet
Standard 9 AM – 5 PM hours in Chicago and Perth do not overlap. The least-bad options are an early start in one city or a late evening call in the other — for example a 7–8 AM meeting in Chicago, or a 6–8 PM meeting in Perth.
Quick conversion table
| Chicago | Perth |
|---|---|
| 12 AM | 1:00 PM |
| 1 AM | 2:00 PM |
| 2 AM | 3:00 PM |
| 3 AM | 4:00 PM |
| 4 AM | 5:00 PM |
| 5 AM | 6:00 PM |
| 6 AM | 7:00 PM |
| 7 AM | 8:00 PM |
| 8 AM | 9:00 PM |
| 9 AM | 10:00 PM |
| 10 AM | 11:00 PM |
| 11 AM | 12:00 AM (next day) |
| 12 PM | 1:00 AM (next day) |
| 1 PM | 2:00 AM (next day) |
| 2 PM | 3:00 AM (next day) |
| 3 PM | 4:00 AM (next day) |
| 4 PM | 5:00 AM (next day) |
| 5 PM | 6:00 AM (next day) |
| 6 PM | 7:00 AM (next day) |
| 7 PM | 8:00 AM (next day) |
| 8 PM | 9:00 AM (next day) |
| 9 PM | 10:00 AM (next day) |
| 10 PM | 11:00 AM (next day) |
| 11 PM | 12:00 PM (next day) |
Daylight saving
On November 1, 2026, Chicago shifts for daylight saving. After that, Perth will be 14 hours ahead of Chicago (currently 13 hours ahead of Chicago). The converter and the tables above always reflect the correct offset for the date you pick.
- Chicago is currently observing daylight saving time.
- Perth does not observe daylight saving time.
Frequently asked questions
- Is Perth ahead of or behind Chicago?
- Perth is 13 hours ahead of Chicago.
- How many hours ahead of Chicago is Perth?
- Perth is 13 hours ahead of Chicago.
- What time is 9 AM in Chicago in Perth?
- 9:00 AM in Chicago is 10:00 PM in Perth.
- What time is noon in Chicago in Perth?
- 12:00 PM in Chicago is 1:00 AM the next day in Perth.
- What time is 5 PM in Chicago in Perth?
- 5:00 PM in Chicago is 6:00 AM the next day in Perth. Useful for end-of-day handoffs between the two offices.
- What time is 3 PM in Chicago in Perth?
- 3:00 PM in Chicago is 4:00 AM the next day in Perth.
- Is Chicago currently observing daylight saving time?
- Chicago is currently observing daylight saving time (summer time).
- Is Perth currently observing daylight saving time?
- Perth does not observe daylight saving time — its UTC offset stays the same all year.
- Do Chicago and Perth observe daylight saving?
- On November 1, 2026, Chicago shifts for daylight saving. After that, Perth will be 14 hours ahead of Chicago (currently 13 hours ahead of Chicago). The converter and the tables above always reflect the correct offset for the date you pick.
- When is the best time to call Perth from Chicago?
- Chicago and Perth business hours don't overlap. The closest options are early mornings in Chicago or late evenings, when one side stretches outside 9–5.
- When is the best time to call Chicago from Perth?
- Perth and Chicago business hours don't overlap. The closest options are early mornings in Perth or late evenings, when one side stretches outside 9–5.
- Chicago (CDT) to Perth (AWST) — how do I convert quickly?
- Add 13 hours to Chicago local time to get Perth local time. Or use the converter at the top of this page — it stays accurate through daylight-saving changes automatically.
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