New York to ACST
+13h 30mNew York
EDTSOURCEACST
ACSTGreen rows indicate typical business hours (9 AM - 5 PM)
EDT and ACST on the World Map
The map below highlights the EDT (Eastern Standard Time) and ACST (Australian Central Standard Time) timezone regions across the globe.
EST – Eastern Standard Time
UTC-05:00Eastern Standard Time (EST) is the time zone for the eastern United States and Canada, 5 hours behind UTC.
- •EST is the most widely used time zone in the United States by population.
- •The New York Stock Exchange (NYSE) and NASDAQ operate on Eastern Time, opening at 9:30 AM EST.
- •23 US states are fully or partially in the Eastern Time Zone.
- •EST was established by the Standard Time Act of 1918.
- •Over 47% of the US population lives in the Eastern Time Zone.
ACST – Australian Central Standard Time
UTC+09:30Australian Central Standard Time (ACST, UTC+09:30) covers South Australia and the Northern Territory, on a half-hour offset.
- •ACST uses a half-hour offset: UTC+09:30.
- •South Australia moves to ACDT (UTC+10:30) in summer; the Northern Territory does not.
- •Adelaide and Darwin are 30 minutes apart during daylight saving, level in winter.
- •Adelaide is one of the few major cities on a 30-minute offset.
About New York
WikipediaNew York City, the financial capital of the world, operates on Eastern Time (EST/EDT). Home to Wall Street and the NYSE, NYC is crucial for global business coordination.
New York City has more than 800 languages spoken, making it the most linguistically diverse city in the world.
Comparing Time Zones: New York and ACST
New York runs on Eastern Daylight Time (EDT) at UTC-04:00, currently observing daylight saving time. ACST runs on Australian Central Standard Time (ACST) at UTC+09:30. That puts New York 13 hours 30 minutes ahead of ACST — a difference of +13h 30m at the current offsets.
In practice, when it is 9:00 AM in New York it is 10:30 PM in ACST. Midnight in New York is 1:30 PM in ACST.New York observes daylight saving time while ACST does not, so the gap narrows or widens by an hour part of the year.
New York to ACST time conversion table
| New York (EDT) | ACST (ACST) | Day |
|---|---|---|
| 12:00 AM | 1:30 PM | same day |
| 6:00 AM | 7:30 PM | same day |
| 7:00 AM | 8:30 PM | same day |
| 8:00 AM | 9:30 PM | same day |
| 9:00 AM | 10:30 PM | same day |
| 12:00 PM | 1:30 AM | next day |
| 3:00 PM | 4:30 AM | next day |
| 5:00 PM | 6:30 AM | next day |
| 6:00 PM | 7:30 AM | next day |
| 9:00 PM | 10:30 AM | next day |
Why people convert New York to ACST time
- Scheduling a call from New York to ACST: a 10:00 AM start in New York lands at 11:30 PM in ACST, so you can confirm the slot without doing the arithmetic yourself.
- Handling a +13h 30m gap: New York and ACST have no overlap inside a normal 9-to-5 day, so real-time meetings need an early-morning or late-evening slot on one side. 9:00 AM in ACST is 10:30 PM in New York.
- Booking travel or deliveries: tracking ACST local time against New York keeps pickup windows and arrival estimates honest across the +13h 30m offset.
- Always state the zone abbreviation, not just the hour. "3:00 PM EDT" is unambiguous; "3 PM" across a +13h 30m gap is not.
- With a +13h 30m gap there is no shared 9-to-5 window, so alternate the early start: one week New York takes the early slot, the next week ACST does.
- New York: Clocks fall back on Sun, Nov 1, 2026. Re-check this page after that date because the offset changes and so does the +13h 30m gap.
About EST (Eastern Standard Time)
Eastern Standard Time (EST) is observed during the winter months in the eastern part of North America. It covers 23 US states and parts of Canada including Ontario and Quebec. EST is the most populous time zone in the United States, home to major financial centers like New York City and global organizations headquartered in Washington D.C. During daylight saving time (March–November), clocks shift to Eastern Daylight Time (EDT, UTC-04:00). The time zone also covers parts of the Caribbean and Central America including Panama, Jamaica, and the Cayman Islands.
About ACST (Australian Central Standard Time)
Australian Central Standard Time (ACST) is the half-hour offset of UTC+09:30 used across South Australia and the Northern Territory, taking in Adelaide and Darwin. South Australia moves to Australian Central Daylight Time (ACDT, UTC+10:30) from the first Sunday in October to the first Sunday in April, but the Northern Territory does not observe daylight saving — so Adelaide and Darwin sit 30 minutes apart in summer and level with each other in winter. The half-hour offset means Adelaide is 30 minutes behind Sydney in winter and level with it during daylight saving, which regularly catches out travellers and meeting planners.
Best time to call between New York and ACST
With a +13h 30m offset there is no overlap inside a normal 9 AM – 5 PM day. ACST opens at 9:00 AM ACST, which is 10:30 PM in New York, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
New York and ACST have no shared working hours because of the +13h 30m gap. Teams need to alternate early starts or rely on asynchronous handovers.
New York is 13 hours 30 minutes ahead of ACST (EDT UTC-04:00 → ACST UTC+09:30). There is no shared 9-to-5 window, so plan around an early or late slot. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
New York
☀ Currently in DST
Standard: UTC-05:00 · DST: UTC-04:00
Clocks fall back on Sun, Nov 1, 2026
ACST
❄ Currently in Standard Time
Standard: UTC+09:30 · DST: UTC+10:30
Clocks spring forward on Sat, Oct 3, 2026
⚠ These locations are currently in different DST states, so the time difference may change when clocks adjust.
Learn More About Time
Dive deeper into the fascinating world of timekeeping, time zones, and how they shape our global society:
Frequently Asked Questions
What is the time difference between New York and ACST?
New York (EDT, UTC-04:00) is 13 hours 30 minutes ahead of ACST (ACST, UTC+09:30). The gap is currently +13h 30m.
How do I convert New York time to ACST time?
Add +13h 30m to New York local time. For example, 9:00 AM in New York is 10:30 PM in ACST.
What time is it in ACST right now?
ACST uses ACST at UTC+09:30. Use the live converter at the top of this page — it updates in real time and already accounts for the +13h 30m offset from New York.
What is the best time to call ACST from New York?
There is no shared working-hours window because of the +13h 30m gap. The closest option is 1:00 PM in New York, which is 2:30 AM in ACST.
Which is ahead, New York or ACST?
New York is 13 hours 30 minutes ahead of ACST. When it is 12:00 PM in New York it is 1:30 AM in ACST.
Do New York and ACST use different time zones?
New York (USA) uses EDT at UTC-04:00, while ACST uses ACST at UTC+09:30. The IANA identifiers are America/New_York and Australia/Adelaide.
Does daylight saving time affect the New York–ACST difference?
Yes at the moment: New York is on daylight saving time and ACST is not, so the +13h 30m gap shifts by an hour when exactly one of them changes clocks.
Which other cities share New York's time zone?
EDT also covers New York City, Washington D.C., Miami, Toronto, Philadelphia, Atlanta, Boston, Montreal and 8 more.
Which countries use EDT, New York's zone?
EDT is used in United States (Eastern), Canada (Ontario, Quebec), Mexico (Quintana Roo), Panama, Jamaica, Cayman Islands, Haiti, Bahamas and 4 more.
Is there a day difference between New York and ACST?
Sometimes. The +13h 30m gap is large enough that 8:00 PM or later in New York already falls on the next day in ACST.
What is the time difference between New York and ACST?
ACST is +13h 30m from New York.
What timezone is New York in?
New York City, the financial capital of the world, operates on Eastern Time (EST/EDT). Home to Wall Street and the NYSE, NYC is crucial for global business coordination.
What timezone is ACST in?
ACST operates on its local timezone.
What are the business hours in New York?
Standard business hours in New York are 9:00 AM - 5:00 PM EST.
Which countries use EST (Eastern Standard Time)?
EST is used in United States (Eastern), Canada (Ontario, Quebec), Mexico (Quintana Roo), Panama, Jamaica, Cayman Islands, and 6 more countries.
Does EST observe daylight saving time?
Yes, EST switches to EDT during summer months.
What are some interesting facts about EST?
EST is the most widely used time zone in the United States by population. The New York Stock Exchange (NYSE) and NASDAQ operate on Eastern Time, opening at 9:30 AM EST.
Which cities are in the ACST timezone?
Major cities in the ACST timezone include Adelaide, Darwin, Alice Springs, Mount Gambier.
What is the UTC offset for ACST?
Australian Central Standard Time (ACST) is at UTC+09:30. During daylight saving time, it shifts to ACDT.
What should I know about the ACST timezone?
ACST uses a half-hour offset: UTC+09:30. South Australia moves to ACDT (UTC+10:30) in summer; the Northern Territory does not.
When is it midnight in New York, what time is it in ACST?
When it is 12:00 AM (midnight) in New York (EST), it is +13h 30m later in ACST (ACST).
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