No overlap — one side will join outside working hours
EST (New York)
SYDNEY (Sydney)
00:00
14:00Working
01:00
15:00Working
02:00
16:00Working
03:00
17:00
04:00
18:00
05:00
19:00
06:00
20:00
07:00
21:00
08:00
22:00
09:00Working
23:00off
10:00Working
00:00+1doff
11:00Working
01:00+1doff
12:00Working
02:00+1doff
13:00Working
03:00+1doff
14:00Working
04:00+1doff
15:00Working
05:00+1doff
16:00Working
06:00+1doff
17:00
07:00+1d
18:00
08:00+1d
19:00
09:00+1dWorking
20:00
10:00+1dWorking
21:00
11:00+1dWorking
22:00
12:00+1dWorking
23:00
13:00+1dWorking
Working hours: 09:00–17:00 local. Green = both working.Purple = one side only.
Frequently Asked Questions
What is the difference between est and sydney?
Eastern Standard Time (est) is UTC-4 and SYDNEY (Sydney) (sydney) is UTC+10. The difference between them is 14 hours.
Where is est used?
Eastern Standard Time (est) is used in USA and surrounding regions. The IANA timezone identifier is America/New_York.
Where is sydney used?
SYDNEY (Sydney) (sydney) is used in Australia and surrounding regions. The IANA timezone identifier is Australia/Sydney.
How do I convert est to sydney?
Use the interactive converter above. Drag the time slider to any est time and the sydney equivalent updates instantly. You can also type a time like "3pm" or "15:00" in the input bar.
EST (New York) is 14 hours behind Sydney. Midday in EST (New York) lines up with 02:00 in Sydney.
EST (New York) observes America/New_York and Sydney observes Australia/Sydney — a 14 hours gap between them.
Working hours overlap
When EST (New York) is in standard working hours, Sydney is not — and vice versa. There is no mutual business window between these two locations.
Optimal meeting slots
No business hours overlap exists between EST (New York) and Sydney. Showing the most balanced options with minimal inconvenience for both locations.
16:00 New York / 06:00 Sydney⚡ One side off-hours
⚠️ 3h before working hours in Sydney
19:00 New York / 09:00 Sydney⚡ One side off-hours
⚠️ 3h after working hours in New York
15:00 New York / 05:00 Sydney⚡ One side off-hours
⚠️ 4h before working hours in Sydney
Assumes a standard 9 AM–5 PM workday in each location's local timezone.
Upcoming public holidays
⚡ Watch out — upcoming holidays on both sides. Verify availability in advance.
EST (New York)7 holidays
Jul 3Independence DaySOON
Sep 7Labour Day
Oct 12Columbus Day
Oct 12Indigenous Peoples' Day
Nov 11Veterans Day
Sydney7 holidays
Aug 3Picnic Day
Sep 28King's Birthday
Oct 5Labour Day
Oct 5King's Birthday
Nov 3Melbourne Cup
How to work with EST (New York) and Sydney time zones
Working across EST (New York) (USA) and Sydney (Australia) is a challenge — the 14-hour difference means no shared business hours window under a standard schedule. Flexibility from at least one side is required.
💡 How to schedule across these time zones
⚡
16:00–17:00 in EST (New York) corresponds to 06:00–07:00 in Sydney (3h before working hours in Sydney).
⚡
19:00–20:00 in EST (New York) corresponds to 09:00–10:00 in Sydney (3h after working hours in New York).
⚡
15:00–16:00 in EST (New York) corresponds to 05:00–06:00 in Sydney (4h before working hours in Sydney).
Since there is no natural overlap, the options above represent the most balanced compromise, minimizing out-of-hours inconvenience for both sides.
Recurring meetings are particularly vulnerable to DST shifts. The ClockinSync Chrome Extension alerts you before the offset changes.
Drag the slider at the top to convert any EST (New York) time instantly. You can also type natural language like "3pm", "15:00", or a location name to get an immediate answer.
