Clockjumper

Time difference

Adelaide to Atlanta Time Difference

Atlanta is 13 hours and 30 minutes behind Adelaide — when it's 12:00 PM in Adelaide, it's 10:30 PM the previous day in Atlanta. (Adelaide (Australia/Adelaide, ACST); Atlanta (America/New_York, EDT).) Below: live local times, the best hours for a call, a full conversion table, and exact daylight-saving dates.

Quick answer

Atlanta is 13 hours and 30 minutes behind Adelaide. Standard 9 AM–5 PM business hours in Adelaide and Atlanta do not overlap, so a live call needs one side outside normal hours. Clocks change on October 4, 2026, which briefly shifts the gap between Adelaide and Atlanta — the converter on this page always reflects the correct offset for the date you pick.

  • When it's 9:00 AM in Adelaide, it's 7:30 PM the previous day in Atlanta.
  • When it's 9:00 AM in Atlanta, it's 10:30 PM in Adelaide.

Atlanta is currently 13 hours and 30 minutes behind Adelaide.

AdelaideACST
6:07 AM
Monday, Aug 24
AtlantaEDT
4:37 PM
Sunday, Aug 23

Interactive converter

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12:00PM

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Best times to meet

Standard 9 AM – 5 PM hours in Adelaide and Atlanta do not overlap. The least-bad options are an early start in one city or a late evening call in the other — for example a 7–8 AM meeting in Adelaide, or a 6–8 PM meeting in Atlanta.

Quick conversion table

AdelaideAtlanta
12 AM10:30 AM (prev day)
1 AM11:30 AM (prev day)
2 AM12:30 PM (prev day)
3 AM1:30 PM (prev day)
4 AM2:30 PM (prev day)
5 AM3:30 PM (prev day)
6 AM4:30 PM (prev day)
7 AM5:30 PM (prev day)
8 AM6:30 PM (prev day)
9 AM7:30 PM (prev day)
10 AM8:30 PM (prev day)
11 AM9:30 PM (prev day)
12 PM10:30 PM (prev day)
1 PM11:30 PM (prev day)
2 PM12:30 AM
3 PM1:30 AM
4 PM2:30 AM
5 PM3:30 AM
6 PM4:30 AM
7 PM5:30 AM
8 PM6:30 AM
9 PM7:30 AM
10 PM8:30 AM
11 PM9:30 AM

Daylight saving

On October 4, 2026, Adelaide shifts for daylight saving. After that, Atlanta will be 14 hours and 30 minutes behind Adelaide (currently 13 hours and 30 minutes behind Adelaide). The converter and the tables above always reflect the correct offset for the date you pick.

  • Adelaide is not currently observing daylight saving time (standard time is in effect).
  • Atlanta is currently observing daylight saving time.

Frequently asked questions

Is Atlanta ahead of or behind Adelaide?
Atlanta is 13 hours and 30 minutes behind Adelaide.
How many hours behind Adelaide is Atlanta?
Atlanta is 13 hours and 30 minutes behind Adelaide.
What time is 9 AM in Adelaide in Atlanta?
9:00 AM in Adelaide is 7:30 PM the previous day in Atlanta.
What time is noon in Adelaide in Atlanta?
12:00 PM in Adelaide is 10:30 PM the previous day in Atlanta.
What time is 5 PM in Adelaide in Atlanta?
5:00 PM in Adelaide is 3:30 AM in Atlanta. Useful for end-of-day handoffs between the two offices.
What time is 3 PM in Adelaide in Atlanta?
3:00 PM in Adelaide is 1:30 AM in Atlanta.
Is Adelaide currently observing daylight saving time?
Adelaide observes daylight saving time seasonally, but is not currently on DST (standard time is in effect).
Is Atlanta currently observing daylight saving time?
Atlanta is currently observing daylight saving time (summer time).
Do Adelaide and Atlanta observe daylight saving?
On October 4, 2026, Adelaide shifts for daylight saving. After that, Atlanta will be 14 hours and 30 minutes behind Adelaide (currently 13 hours and 30 minutes behind Adelaide). The converter and the tables above always reflect the correct offset for the date you pick.
When is the best time to call Atlanta from Adelaide?
Adelaide and Atlanta business hours don't overlap. The closest options are early mornings in Adelaide or late evenings, when one side stretches outside 9–5.
When is the best time to call Adelaide from Atlanta?
Atlanta and Adelaide business hours don't overlap. The closest options are early mornings in Atlanta or late evenings, when one side stretches outside 9–5.
Adelaide (ACST) to Atlanta (EDT) — how do I convert quickly?
Subtract 13 hours and 30 minutes from Adelaide local time to get Atlanta local time. Or use the converter at the top of this page — it stays accurate through daylight-saving changes automatically.