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Convert Cook Islands Time to Greenwich Mean Time

CKT · UTC−10 → GMT · UTC+0

CKT is 10 hours behind GMT

Today Avarua is on UTC-10 (UTC−10) and London on BST (UTC+1), so right now Avarua is 11 hours behind London.

Avarua · UTC-10

Wednesday, 7 October 2026

London · BST

Wednesday, 7 October 2026

When are both sides at work?

0003060912151821
AvaruaUTC-10 · -10:00
0003060912151821
LondonBST · +01:00
1114172023020508

No overlap in standard working hours. Closest workable window: 09:00–12:00 in Avarua, which is 20:00–23:00 in London.

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

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01:27 Wed 7 Oct Avarua = 12:27 Wed 7 Oct London

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Hour-by-hour conversion

Avarua (CKT)London (GMT)
00:0011:00
01:0012:00Now
02:0013:00
03:0014:00
04:0015:00
05:0016:00
06:0017:00
07:0018:00
08:0019:00
09:0020:00
10:0021:00
11:0022:00
12:0023:00
13:0000:00next day
14:0001:00next day
15:0002:00next day
16:0003:00next day
17:0004:00next day
18:0005:00next day
19:0006:00next day
20:0007:00next day
21:0008:00next day
22:0009:00next day
23:0010:00next day

About this conversion

CKT here means Cook Islands Time, represented by Avarua (Pacific/Rarotonga), currently UTC−10. GMT means Greenwich Mean Time, represented by London (Europe/London), currently UTC+1.

GMT is used by 22 zones, including United Kingdom. See every meaning of GMT.

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 Avarua; day boundaries are marked where the date differs.

Quick answers

  • 09:00 CKT is 20:00 GMT
  • 12:00 CKT is 23:00 GMT
  • 15:00 CKT is 02:00 GMT
  • 18:00 CKT is 05:00 GMT

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