Sydney zone
GMT+10 (GMT+10)
Buenos Aires zone
GMT-3 (GMT-3)
Difference
13 hours behind Sydney
Business overlap
No 9-5 overlap
Working hours overlap
Each cell is one hour in Sydney. Filled cells mark when 9 AM – 5 PM in Sydney and Buenos Aires both apply.
0 hours per day
- Sydney
- GMT+10
- Buenos Aires
- GMT-3
- Difference
- -13h
- Business overlap
- 0h
Hour-by-hour conversion
Each row shows the matching local time in Buenos Aires for an hour in Sydney.
| Sydney | Buenos Aires | Day | Window |
|---|---|---|---|
| 12:00 AM | 11:00 AM | previous day | — |
| 1:00 AM | 12:00 PM | previous day | — |
| 2:00 AM | 1:00 PM | previous day | — |
| 3:00 AM | 2:00 PM | previous day | — |
| 4:00 AM | 3:00 PM | previous day | — |
| 5:00 AM | 4:00 PM | previous day | — |
| 6:00 AM | 5:00 PM | previous day | — |
| 7:00 AM | 6:00 PM | previous day | — |
| 8:00 AM | 7:00 PM | previous day | — |
| 9:00 AM | 8:00 PM | previous day | — |
| 10:00 AM | 9:00 PM | previous day | — |
| 11:00 AM | 10:00 PM | previous day | — |
| 12:00 PM | 11:00 PM | previous day | — |
| 1:00 PM | 12:00 AM | same day | — |
| 2:00 PM | 1:00 AM | same day | — |
| 3:00 PM | 2:00 AM | same day | — |
| 4:00 PM | 3:00 AM | same day | — |
| 5:00 PM | 4:00 AM | same day | — |
| 6:00 PM | 5:00 AM | same day | — |
| 7:00 PM | 6:00 AM | same day | — |
| 8:00 PM | 7:00 AM | same day | — |
| 9:00 PM | 8:00 AM | same day | — |
| 10:00 PM | 9:00 AM | same day | — |
| 11:00 PM | 10:00 AM | same day | — |
Best meeting windows
Standard 9 AM – 5 PM hours in Sydney and Buenos Aires do not overlap. Plan calls for early Sydney morning or late Sydney evening, and rotate the burden between sides.
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 Sydney time to Buenos Aires time
Sydney follows the Australia/Sydney time zone (currently GMT+10, GMT+10), while Buenos Aires follows America/Argentina/Buenos_Aires (currently GMT-3, GMT-3). Buenos Aires is 13 hours behind Sydney right now.
Sydney observes daylight saving time, while Buenos Aires does not. The offset between the two cities changes by one hour at the daylight saving transitions.
Daylight saving transitions in 2026
Sydney
- Fall back · Sunday, April 5, 2026
- Spring forward · Sunday, October 4, 2026
Buenos Aires
Does not observe daylight saving time.
Reverse this conversion
Buenos Aires to Sydney
Open the converter
Plan a meeting between Sydney and Buenos Aires
More conversions from Sydney
Frequently asked questions
- How many hours is Sydney from Buenos Aires?
- Buenos Aires is 13 hours behind Sydney right now.
- What time is 9:00 AM Sydney in Buenos Aires?
- 9:00 AM in Sydney is 8:00 PM (previous day) in Buenos Aires.
- What time is 5:00 PM Sydney in Buenos Aires?
- 5:00 PM in Sydney is 4:00 AM in Buenos Aires.
- When do Sydney and Buenos Aires business hours overlap?
- Standard 9 AM - 5 PM working hours in Sydney and Buenos Aires do not overlap. You will need an early or late call.
- Does daylight saving time change the difference between Sydney and Buenos Aires?
- Sydney observes daylight saving time while Buenos Aires does not, so the offset between them changes by one hour twice a year.
Local time page
Time in Sydney
Local time page
Time in Buenos Aires