Chicago zone
CDT (GMT-5)
Auckland zone
GMT+12 (GMT+12)
Difference
17 hours ahead of Chicago
Business overlap
1h (9-5 windows)
Working hours overlap
Each cell is one hour in Chicago. Filled cells mark when 9 AM – 5 PM in Chicago and Auckland both apply.
1 hour per day
- Chicago
- GMT-5
- Auckland
- GMT+12
- Difference
- +17h
- Business overlap
- 1h
Hour-by-hour conversion
Each row shows the matching local time in Auckland for an hour in Chicago.
| Chicago | Auckland | Day | Window |
|---|---|---|---|
| 12:00 AM | 5:00 PM | same day | — |
| 1:00 AM | 6:00 PM | same day | — |
| 2:00 AM | 7:00 PM | same day | — |
| 3:00 AM | 8:00 PM | same day | — |
| 4:00 AM | 9:00 PM | same day | — |
| 5:00 AM | 10:00 PM | same day | — |
| 6:00 AM | 11:00 PM | same day | — |
| 7:00 AM | 12:00 AM | next day | — |
| 8:00 AM | 1:00 AM | next day | — |
| 9:00 AM | 2:00 AM | next day | — |
| 10:00 AM | 3:00 AM | next day | — |
| 11:00 AM | 4:00 AM | next day | — |
| 12:00 PM | 5:00 AM | next day | — |
| 1:00 PM | 6:00 AM | next day | — |
| 2:00 PM | 7:00 AM | next day | — |
| 3:00 PM | 8:00 AM | next day | — |
| 4:00 PM | 9:00 AM | next day | Both 9-5 |
| 5:00 PM | 10:00 AM | next day | — |
| 6:00 PM | 11:00 AM | next day | — |
| 7:00 PM | 12:00 PM | next day | — |
| 8:00 PM | 1:00 PM | next day | — |
| 9:00 PM | 2:00 PM | next day | — |
| 10:00 PM | 3:00 PM | next day | — |
| 11:00 PM | 4:00 PM | next day | — |
Best meeting windows
If both teams keep standard 9 AM – 5 PM hours, the overlap window is roughly 4:00 PM – 5:00 PM in Chicago time. That gives you 1 hour per workday for live meetings.
Tighter overlap is achievable by having the side with later working hours start earlier, or by treating the first and last hours of each side as flexible. The bar above marks every hour where both cities sit inside a 9 AM – 5 PM window.
About converting Chicago time to Auckland time
Chicago follows the America/Chicago time zone (currently CDT, GMT-5), while Auckland follows Pacific/Auckland (currently GMT+12, GMT+12). Auckland is 17 hours ahead of Chicago right now.
Both cities observe daylight saving time. If their transition weekends differ, the offset shifts by one hour for a few weeks each spring and autumn.
Daylight saving transitions in 2026
Chicago
- Spring forward · Sunday, March 8, 2026
- Fall back · Sunday, November 1, 2026
Auckland
- Fall back · Sunday, April 5, 2026
- Spring forward · Sunday, September 27, 2026
Reverse this conversion
Auckland to Chicago
Open the converter
Plan a meeting between Chicago and Auckland
More conversions from Chicago
Frequently asked questions
- How many hours is Chicago from Auckland?
- Auckland is 17 hours ahead of Chicago right now.
- What time is 9:00 AM Chicago in Auckland?
- 9:00 AM in Chicago is 2:00 AM (next day) in Auckland.
- What time is 5:00 PM Chicago in Auckland?
- 5:00 PM in Chicago is 10:00 AM (next day) in Auckland.
- When do Chicago and Auckland business hours overlap?
- Standard 9 AM - 5 PM working hours overlap for about 1 hour, roughly from 4:00 PM to 5:00 PM in Chicago time.
- Does daylight saving time change the difference between Chicago and Auckland?
- Both Chicago and Auckland observe daylight saving time. If their transition dates differ, the offset between them shifts by an hour for a few weeks each year.
Local time page
Time in Chicago
Local time page
Time in Auckland