The short answer

Chatham Standard Time is 2 hours 45 minutes ahead of Australian Eastern Standard Time.

Chatham Standard Time
11:43:55am
+12:45 · UTC+12:45 · Thu, Jun 25
Australian Eastern Standard Time
8:58:55am
AEST · UTC+10:00 · Thu, Jun 25
Read across to convert
Chatham Standard Time
+12:45 · UTC+12:45
11:43am ☀
Australian Eastern Standard Time
AEST · UTC+10:00
8:58am ☀
Click any row to pin that hour across both zones.
12amThu
9:15pmWed ·−1d
1am
10:15pmWed ·−1d
2am
11:15pmWed ·−1d
3am
12:15amThu
4am
1:15am
5am
2:15am
6am
3:15am
7am
4:15am
8am
5:15am
9am
WORK
6:15am
10am
WORK
7:15am
NOW
11am
WORK
8:15am
12pm
WORK
9:15am
WORK
1pm
WORK
10:15am
WORK
2pm
WORK
11:15am
WORK
3pm
WORK
12:15pm
WORK
4pm
WORK
1:15pm
WORK
5pm
2:15pm
WORK
6pm
3:15pm
WORK
7pm
4:15pm
WORK
8pm
5:15pm
9pm
6:15pm
10pm
7:15pm
11pm
8:15pm
daylightnightworking hoursoverlap
Best time to meet
Best for a call
Chatham Standard Time
12pm–5pm
=
Australian Eastern Standard Time
9:15am–2:15pm
Popular conversions

Quick reference.

9amChatham Standard Time=6:15amAustralian Eastern Standard Time
12pmChatham Standard Time=9:15amAustralian Eastern Standard Time
3pmChatham Standard Time=12:15pmAustralian Eastern Standard Time
5pmChatham Standard Time=2:15pmAustralian Eastern Standard Time
9pmChatham Standard Time=6:15pmAustralian Eastern Standard Time
In context

What each side covers.

Chatham Standard Time
+12:45 · UTC+12:45
11:43am

Chatham Standard Time

8:58am
Cities on this clock

Frequently asked

Quick answers about converting between Chatham Standard Time and Australian Eastern Standard Time. Can't find what you need? Email [email protected].

What is the time difference between Chatham Standard Time and Australian Eastern Standard Time?
Chatham Standard Time is 2 hours 45 minutes ahead of Australian Eastern Standard Time right now. We always show the live, daylight-saving-correct difference, so this figure already accounts for whichever side is observing summer time today.
When it's 9am in Chatham Standard Time, what time is it in Australian Eastern Standard Time?
9am in Chatham Standard Time is 6:15am in Australian Eastern Standard Time. Use the hour-by-hour table above to read any other time across — find the row and read the matching cell in the other column.
What's the best time for a call between Chatham Standard Time and Australian Eastern Standard Time?
12pm–5pm in Chatham Standard Time lines up with 9:15am–2:15pm in Australian Eastern Standard Time — both sides are inside a 9-to-5 working day.
Does this account for daylight saving time?
Yes. We track every clock change in both places, so the abbreviations you see — +12:45 and AEST — are the ones actually in effect right now, not a fixed all-year value. When either side changes its clocks, this page updates automatically.
Why is the date sometimes different on each side?
When two places are far enough apart, the same moment can fall on different calendar days. That is why some conversions are marked "previous day" or "next day" — it is the same instant in time, read off two clocks that crossed midnight at different points.