AEST to GMT Time Converter

Convert Australian Eastern Standard Time (AEST) to Greenwich Mean Time (GMT). Both time zones are shown live below; current offset between them is 9 hours behind.

Sydney · Australian Eastern Standard Time
06:55:29
Monday, May 11, 2026
GMT+10 · UTC+10:00
London · Greenwich Mean Time
21:55:29
Sunday, May 10, 2026
GMT+1 · UTC+01:00

Convert a specific time

From: AEST (Sydney)
To: GMT (London)
--:--

Daylight Saving status right now

AEST (Australian Eastern Standard Time)
Observes DST
Yes
In DST right now
No
Next spring forward
2026-10-04
Offset shift
UTC+10:00 → UTC+11:00
GMT (Greenwich Mean Time)
Observes DST
Yes
In DST right now
Yes
Next fall back
2026-10-25
Offset shift
UTC+01:00 → UTC+00:00

When can AEST and GMT 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
AEST
GMT
Both zones in working hours (9am-5pm)
One zone working
Off-hours
Columns are hours of the day in Sydney (AEST). 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 17:00–18:00 AEST (08:00–09:00 GMT).

Hour-by-hour AEST to GMT conversion table

AEST time (Sydney)GMT time (London)Status
00:00 Mon15:00 SunGMT working
01:00 Mon16:00 SunGMT working
02:00 Mon17:00 SunOff-hours both sides
03:00 Mon18:00 SunOff-hours both sides
04:00 Mon19:00 SunOff-hours both sides
05:00 Mon20:00 SunOff-hours both sides
06:00 Mon21:00 SunOff-hours both sides
07:00 Mon22:00 SunOff-hours both sides
08:00 Mon23:00 SunOff-hours both sides
09:00 Mon00:00 MonAEST working
10:00 Mon01:00 MonAEST working
11:00 Mon02:00 MonAEST working
12:00 Mon03:00 MonAEST working
13:00 Mon04:00 MonAEST working
14:00 Mon05:00 MonAEST working
15:00 Mon06:00 MonAEST working
16:00 Mon07:00 MonAEST working
17:00 Mon08:00 MonOff-hours both sides
18:00 Mon09:00 MonGMT working
19:00 Mon10:00 MonGMT working
20:00 Mon11:00 MonGMT working
21:00 Mon12:00 MonGMT working
22:00 Mon13:00 MonGMT working
23:00 Mon14:00 MonGMT 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 Eastern Standard Time (AEST)
IANA identifier
Australia/Sydney
Current UTC offset
UTC+10:00
Current abbreviation
GMT+10
Major cities in this zone
SydneyMelbourneCanberra
Greenwich Mean Time (GMT)
IANA identifier
Europe/London
Current UTC offset
UTC+01:00
Current abbreviation
GMT+1
Major cities in this zone
LondonManchesterEdinburghBirmingham

Sun today in Sydney and London

Sydney
Sunrise
06:38
Sunset
17:07
Solar noon
11:52
Daylight
10h 29m
London
Sunrise
05:18
Sunset
20:38
Solar noon
12:58
Daylight
15h 20m

Related converters

GMT to AEST (reverse)AEST to ESTAEST to PSTAEST to UTCAEST to CETAEST to ISTEST to GMTPST to GMTUTC to GMTCET to GMTIST to GMT
Looking for local time? See time in Sydney or time in London.

Frequently asked questions

What is the time difference between AEST and GMT right now?+
GMT (Greenwich Mean Time) is currently 9 hours behind AEST (Australian Eastern Standard Time). The exact difference can change when one or both zones transition into or out of daylight saving time.
Does AEST or GMT observe daylight saving time?+
AEST: observes daylight saving time. GMT: observes daylight saving time.
When is the best time to schedule a meeting between AEST and GMT?+
Standard 9-5 hours do not overlap. Extending to 8am-7pm gives a window of 17:00–18:00 AEST (08:00–09:00 GMT).
What time is it in London when it is 12:00 noon in Sydney?+
When it is 12:00 Mon in Sydney (AEST), it is 03:00 Mon in London (GMT).
Which IANA time zone identifiers are used for AEST and GMT?+
AEST maps to "Australia/Sydney" in the IANA database. GMT maps to "Europe/London". These identifiers are what most software libraries use to convert times accurately, including DST handling.
Is Sydney ahead of or behind London?+
Whether Sydney (AEST) is ahead of or behind London (GMT) depends on the current UTC offsets. Right now GMT is 9 hours behind AEST. The live converter and side-by-side clocks above always reflect the current direction.
What are the current UTC offsets for AEST and GMT?+
AEST is UTC+10:00 (GMT+10) and GMT is UTC+01:00 (GMT+1). 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 AEST and GMT?+
Not during a strict 9am-5pm window. If both sides flex to 8am-7pm, the available meeting window between AEST and GMT is 17:00–18:00 AEST.