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Convert Australian Eastern Time to Chatham Time

AEST · UTC+10 → CHAST · UTC+12:45

AEST is 2 hours 45 minutes behind CHAST

Sydney · AEDT

Wednesday, 7 October 2026

Chatham · CHADT

Thursday, 8 October 2026

When are both sides at work?

0003060912151821
SydneyAEDT · +11:00
0003060912151821
ChathamCHADT · +13:45
0205081114172023

Shared working hours: 09:00–15:30 in Sydney is 11:45–18:15 in Chatham.

Working (09–18) Awake, off the clock Asleep (23–07)

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22:23 Wed 7 Oct Sydney = 01:08 Thu 8 Oct Chatham

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Hour-by-hour conversion

Sydney (AEST)Chatham (CHAST)
00:0002:45
01:0003:45
02:0004:45
03:0005:45
04:0006:45
05:0007:45
06:0008:45
07:0009:45
08:0010:45
09:0011:45Both at work
10:0012:45Both at work
11:0013:45Both at work
12:0014:45Both at work
13:0015:45Both at work
14:0016:45Both at work
15:0017:45Both at work
16:0018:45
17:0019:45
18:0020:45
19:0021:45
20:0022:45
21:0023:45
22:0000:45next dayNow
23:0001:45next day

About this conversion

AEST here means Australian Eastern Time, represented by Sydney (Australia/Sydney), currently UTC+11. CHAST means Chatham Time, represented by Chatham (Pacific/Chatham), currently UTC+13:45.

AEST is used by 2 zones, including Australia. If you meant a different one, see every meaning of AEST.

Working hours are shown as 09:00–18:00 local, and sleeping hours as 23:00–07:00. The hour table is anchored on the current day in Sydney; day boundaries are marked where the date differs.

Quick answers

  • 09:00 AEST is 11:45 CHAST
  • 12:00 AEST is 14:45 CHAST
  • 15:00 AEST is 17:45 CHAST
  • 18:00 AEST is 20:45 CHAST

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