ACST to EST Time Converter

Convert Australian Central Standard Time (ACST) to Eastern Standard Time (EST). Both time zones are shown live below; current offset between them is 13h 30m behind.

Adelaide · Australian Central Standard Time
06:25:29
Monday, May 11, 2026
GMT+9:30 · UTC+09:30
New York · Eastern Standard Time
16:55:29
Sunday, May 10, 2026
EDT · UTC-04:00

Convert a specific time

From: ACST (Adelaide)
To: EST (New York)
--:--

Daylight Saving status right now

ACST (Australian Central Standard Time)
Observes DST
Yes
In DST right now
No
Next spring forward
2026-10-04
Offset shift
UTC+09:30 → UTC+10:30
EST (Eastern Standard Time)
Observes DST
Yes
In DST right now
Yes
Next fall back
2026-11-01
Offset shift
UTC-04:00 → UTC-05:00

When can ACST and EST meet?

00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
ACST
EST
Both zones in working hours (9am-5pm)
One zone working
Off-hours
Columns are hours of the day in Adelaide (ACST). Each row shows the local working-hours state in that zone for the same moment in time.
No overlap during strict 9-5 working hours; some flexibility needed.
If both sides are willing to extend to 8am-7pm, the available window is 08:00–08:00 ACST (18:30–18:30 EST).

Hour-by-hour ACST to EST conversion table

ACST time (Adelaide)EST time (New York)Status
00:00 Mon10:30 SunEST working
01:00 Mon11:30 SunEST working
02:00 Mon12:30 SunEST working
03:00 Mon13:30 SunEST working
04:00 Mon14:30 SunEST working
05:00 Mon15:30 SunEST working
06:00 Mon16:30 SunEST working
07:00 Mon17:30 SunOff-hours both sides
08:00 Mon18:30 SunOff-hours both sides
09:00 Mon19:30 SunACST working
10:00 Mon20:30 SunACST working
11:00 Mon21:30 SunACST working
12:00 Mon22:30 SunACST working
13:00 Mon23:30 SunACST working
14:00 Mon00:30 MonACST working
15:00 Mon01:30 MonACST working
16:00 Mon02:30 MonACST working
17:00 Mon03:30 MonOff-hours both sides
18:00 Mon04:30 MonOff-hours both sides
19:00 Mon05:30 MonOff-hours both sides
20:00 Mon06:30 MonOff-hours both sides
21:00 Mon07:30 MonOff-hours both sides
22:00 Mon08:30 MonOff-hours both sides
23:00 Mon09:30 MonEST working

Times computed for today in each zone using the IANA time zone database. The conversion accounts for daylight saving time wherever applicable.

About these time zones

Australian Central Standard Time (ACST)
IANA identifier
Australia/Adelaide
Current UTC offset
UTC+09:30
Current abbreviation
GMT+9:30
Major cities in this zone
Adelaide
Eastern Standard Time (EST)
IANA identifier
America/New_York
Current UTC offset
UTC-04:00
Current abbreviation
EDT
Major cities in this zone
New YorkMiamiAtlantaBostonPhiladelphia

Sun today in Adelaide and New York

Adelaide
Sunrise
07:00
Sunset
17:26
Solar noon
12:13
Daylight
10h 25m
New York
Sunrise
05:45
Sunset
20:02
Solar noon
12:53
Daylight
14h 16m

Related converters

EST to ACST (reverse)ACST to PSTACST to GMTACST to UTCACST to CETACST to ISTPST to ESTGMT to ESTUTC to ESTCET to ESTIST to EST
Looking for local time? See time in Adelaide or time in New York.

Frequently asked questions

What is the time difference between ACST and EST right now?+
EST (Eastern Standard Time) is currently 13h 30m behind ACST (Australian Central Standard Time). The exact difference can change when one or both zones transition into or out of daylight saving time.
Does ACST or EST observe daylight saving time?+
ACST: observes daylight saving time. EST: observes daylight saving time.
When is the best time to schedule a meeting between ACST and EST?+
Standard 9-5 hours do not overlap. Extending to 8am-7pm gives a window of 08:00–08:00 ACST (18:30–18:30 EST).
What time is it in New York when it is 12:00 noon in Adelaide?+
When it is 12:00 Mon in Adelaide (ACST), it is 22:30 Sun in New York (EST).
Which IANA time zone identifiers are used for ACST and EST?+
ACST maps to "Australia/Adelaide" in the IANA database. EST maps to "America/New_York". These identifiers are what most software libraries use to convert times accurately, including DST handling.
Is Adelaide ahead of or behind New York?+
Whether Adelaide (ACST) is ahead of or behind New York (EST) depends on the current UTC offsets. Right now EST is 13h 30m behind ACST. The live converter and side-by-side clocks above always reflect the current direction.
What are the current UTC offsets for ACST and EST?+
ACST is UTC+09:30 (GMT+9:30) and EST is UTC-04:00 (EDT). Both offsets shift by one hour when the corresponding region enters or exits daylight saving time, so the live values on this page are the source of truth.
Can I schedule meetings during business hours for both ACST and EST?+
Not during a strict 9am-5pm window. If both sides flex to 8am-7pm, the available meeting window between ACST and EST is 08:00–08:00 ACST.