Offset
The time difference between Sydney and Boston is 14 hours.
Sydney (AEST) is ahead of Boston (EDT).
AEST: UTC+10
EDT: UTC-4
Boston is currently observing daylight saving time; Sydney is not.
When to schedule
Standard business hours (9 AM–5 PM, Mon–Fri) in Sydney and Boston don't overlap on the same weekday. Boston is 14 hours behind Sydney.
Realistic options: hand off asynchronously, or stretch one side by an hour to catch the other team at the start or end of their day.
This window may shift by an hour during daylight saving time.
Public holidays in 2026
National public holidays can affect availability — a counterpart is likely off work on their own holidays, so it's worth planning meetings and deadlines around them.
Australia
- New Year's DayThu, Jan 1
- Australia DayMon, Jan 26
- Good FridayFri, Apr 3
- Easter MondayMon, Apr 6
- Christmas DayFri, Dec 25
- St. Stephen's DayMon, Dec 28
United States
- New Year's DayThu, Jan 1
- Martin Luther King, Jr. DayMon, Jan 19
- Presidents DayMon, Feb 16
- Memorial DayMon, May 25
- Juneteenth National Independence DayFri, Jun 19
- Independence DayFri, Jul 3
- Labour DayMon, Sep 7
- Columbus DayMon, Oct 12
- Veterans DayWed, Nov 11
- Thanksgiving DayThu, Nov 26
- Christmas DayFri, Dec 25
About these zones
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| Sydney | Boston | Day |
|---|---|---|
| 12:00 am | 10:00 am | -1 day |
| 1:00 am | 11:00 am | -1 day |
| 2:00 am | 12:00 pm | -1 day |
| 3:00 am | 1:00 pm | -1 day |
| 4:00 am | 2:00 pm | -1 day |
| 5:00 am | 3:00 pm | -1 day |
| 6:00 am | 4:00 pm | -1 day |
| 7:00 am | 5:00 pm | -1 day |
| 8:00 am | 6:00 pm | -1 day |
| 9:00 am | 7:00 pm | -1 day |
| 10:00 am | 8:00 pm | -1 day |
| 11:00 am | 9:00 pm | -1 day |
| 12:00 pm | 10:00 pm | -1 day |
| 1:00 pm | 11:00 pm | -1 day |
| 2:00 pm | 12:00 am | Same day |
| 3:00 pm | 1:00 am | Same day |
| 4:00 pm | 2:00 am | Same day |
| 5:00 pm | 3:00 am | Same day |
| 6:00 pm | 4:00 am | Same day |
| 7:00 pm | 5:00 am | Same day |
| 8:00 pm | 6:00 am | Same day |
| 9:00 pm | 7:00 am | Same day |
| 10:00 pm | 8:00 am | Same day |
| 11:00 pm | 9:00 am | Same day |
Daylight saving time
Both zones observe daylight saving time, but they transition on different dates.
Sydney: next transition on Sunday, October 4, 2026.
Boston: next transition on Sunday, November 1, 2026.
Sydney and Boston are in opposite hemispheres, so their clocks change in opposite directions about six months apart — one springs forward while the other falls back. The offset between them therefore shifts twice a year and can swing by up to two hours across the seasons, more than a typical same-hemisphere pair. Recurring meetings will need re-checking after each transition.
See the daylight saving time page for transition dates across every time zone.
Daylight today
- Sunrise
- 6:56 AM
- Sunset
- 4:54 PM
- Day length
- 9h 58m
- Sunrise
- 5:09 AM
- Sunset
- 8:19 PM
- Day length
- 15h 11m
Daylight overlap: 3h 23m — 6:56 AM–10:19 AM in Sydney (4:56 PM–8:19 PM in Boston). Both locations are in daylight during this window.
Cities in these zones
Other cities in Australian Eastern Time
Other cities in Eastern Time
Browse all cities to see the current local time anywhere.
Airports in these zones
Airports in Australian Eastern Time
- SYD
- CBR
Airports in Eastern Time
- EWR
- HPN
- JFK
- LGA
- TEB
- ILG
- PHL
- TTN
- CLT
- USA
Related conversions
Common conversions
- What is 9:00 am Sydney in Boston?
- 9:00 am Sydney is 7:00 pm Boston, the previous day.
- What is 12:00 pm Sydney in Boston?
- 12:00 pm Sydney is 10:00 pm Boston, the previous day.
- What is 12:30 pm Sydney in Boston?
- 12:30 pm Sydney is 10:30 pm Boston, the previous day.
- What is 2:00 pm Sydney in Boston?
- 2:00 pm Sydney is 12:00 am Boston.
- What is 5:00 pm Sydney in Boston?
- 5:00 pm Sydney is 3:00 am Boston.
- What is 11:30 pm Sydney in Boston?
- 11:30 pm Sydney is 9:30 am Boston.