TimeToZone

Adelaide Time to EST Converter

EST is 15 hours 30 minutes behind ACDT. 9:00 AM ACDT = 5:30 PM EST (previous day).

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Adelaidefrom
Adelaide, Australia
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EST
Eastern Standard Time
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EST is 15 hours 30 minutes behind ACDT at the moment. To convert Adelaide Time to EST, subtract 15 hours 30 minutes from the Adelaide Time time: 9:00 AM ACDT = 5:30 PM EST (previous day).

Adelaide Time (Adelaide time) is used in Adelaide, Australia. EST (Eastern Time) is used in New York, Washington DC, Florida, Georgia, Ohio, Michigan, Ontario, Quebec, Panama and Jamaica (all year).

Adelaide Time to EST time conversion table

Adelaide Time to EST on 7 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.

Adelaide TimeESTDay
12:00 AM ACDT8:30 AM ESTprevious day
1:00 AM ACDT9:30 AM ESTprevious day
2:00 AM ACDT10:30 AM ESTprevious day
3:00 AM ACDT11:30 AM ESTprevious day
4:00 AM ACDT12:30 PM ESTprevious day
5:00 AM ACDT1:30 PM ESTprevious day
6:00 AM ACDT2:30 PM ESTprevious day
7:00 AM ACDT3:30 PM ESTprevious day
8:00 AM ACDT4:30 PM ESTprevious day
9:00 AM ACDT5:30 PM ESTprevious day
10:00 AM ACDT6:30 PM ESTprevious day
11:00 AM ACDT7:30 PM ESTprevious day
12:00 PM ACDT8:30 PM ESTprevious day
1:00 PM ACDT9:30 PM ESTprevious day
2:00 PM ACDT10:30 PM ESTprevious day
3:00 PM ACDT11:30 PM ESTprevious day
4:00 PM ACDT12:30 AM ESTnight
5:00 PM ACDT1:30 AM ESTnight
6:00 PM ACDT2:30 AM ESTnight
7:00 PM ACDT3:30 AM ESTnight
8:00 PM ACDT4:30 AM ESTnight
9:00 PM ACDT5:30 AM ESTnight
10:00 PM ACDT6:30 AM EST—
11:00 PM ACDT7:30 AM EST—
  • Work rows — 9 AM–5 PM in both places
  • Night in the destination (10 PM–6 AM)

How to convert Adelaide Time to EST

Subtract 15 hours 30 minutes from the Adelaide Time time to get EST.

Example: 9:00 AM ACDT = 5:30 PM EST (previous day).

Across midnight: 1:00 AM ACDT = 9:30 AM EST (previous day). The date changes, so always check the day as well as the hour.

Time difference between Adelaide Time and EST

The time difference between Adelaide Time and EST is not the same all year, because the two sides change for daylight saving time on different dates. In 2026 it works out like this:

  • 1 Jan 2026 – 7 Mar 2026: EST is 15 hours 30 minutes behind of Adelaide Time.
  • 8 Mar 2026 – 4 Apr 2026: EST is 14 hours 30 minutes behind of Adelaide Time.
  • 5 Apr 2026 – 3 Oct 2026: EST is 13 hours 30 minutes behind of Adelaide Time.
  • 4 Oct 2026 – 31 Oct 2026: EST is 14 hours 30 minutes behind of Adelaide Time.
  • 1 Nov 2026 – 31 Dec 2026: EST is 15 hours 30 minutes behind of Adelaide Time.

Adelaide Time and EST during daylight saving time

  • Adelaide Time next changes on 4 Apr 2027: clocks go back one hour at 02:59 local time, from ACDT (UTC+10:30) to ACST (UTC+9:30).
  • EST next changes on 14 Mar 2027: clocks go forward one hour at 01:59 local time, from EST (UTC−5) to EDT (UTC−4).

Best time for a meeting between Adelaide Time and EST

Adelaide Time and EST have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 7:00 AM ACDT, which is 3:30 PM EST.

Plan a meeting across more time zones.

Adelaide Time to EST FAQ

What is the time difference between Adelaide Time and EST?

Right now EST is 15 hours 30 minutes behind ACDT. The gap changes 5 times in 2026 because the two sides switch to daylight saving time on different dates.

What is 9 AM Adelaide Time in EST?

9:00 AM ACDT is 5:30 PM EST (previous day).

What is 12 PM (noon) Adelaide Time in EST?

12:00 PM ACDT is 8:30 PM EST (previous day).

Is EST ahead of or behind Adelaide Time?

EST is 15 hours 30 minutes behind ACDT, so it is earlier in EST than in Adelaide Time.

Does Adelaide Time change for daylight saving time?

Yes. Adelaide Time next changes on 4 Apr 2027, when clocks go back one hour from ACDT to ACST.

Does EST change for daylight saving time?

Yes. EST next changes on 14 Mar 2027, when clocks go forward one hour from EST to EDT.

What is the best time for a meeting between Adelaide Time and EST?

Adelaide Time and EST have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 7:00 AM ACDT, which is 3:30 PM EST.

Is ET the same as EST?

EST is the winter (standard) name of Eastern Time (ET). From March to November the same clocks are called EDT. This converter always uses the one in force on the date you choose.

Related conversions

Convert EST to Adelaide Time

Convert Adelaide Time to other time zones

Convert other time zones to EST

Learn more

Updated 7 November 2026. Time zone data: IANA tz database.