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Convert Cook Islands Time to Lord Howe Time

CKT · UTC−10 → LHST · UTC+10:30

CKT is 20 hours 30 minutes behind LHST

Today Avarua is on UTC-10 (UTC−10) and Lord Howe on LHDT (UTC+11), so right now Avarua is 21 hours behind Lord Howe.

Avarua · UTC-10

Wednesday, 7 October 2026

Lord Howe · LHDT

Wednesday, 7 October 2026

When are both sides at work?

0003060912151821
AvaruaUTC-10 · -10:00
0003060912151821
Lord HoweLHDT · +11:00
2100030609121518

Shared working hours: 12:00–18:00 in Avarua is 09:00–15:00 in Lord Howe.

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

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01:27 Wed 7 Oct Avarua = 22:27 Wed 7 Oct Lord Howe

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Hour-by-hour conversion

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

About this conversion

CKT here means Cook Islands Time, represented by Avarua (Pacific/Rarotonga), currently UTC−10. LHST means Lord Howe Time, represented by Lord Howe (Australia/Lord_Howe), currently UTC+11.

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 06:00 LHST
  • 12:00 CKT is 09:00 LHST
  • 15:00 CKT is 12:00 LHST
  • 18:00 CKT is 15:00 LHST

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