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Convert Chatham Time to Korean Time

CHAST · UTC+12:45 → KST · UTC+9

CHAST is 3 hours 45 minutes ahead of KST

Today Chatham is on CHADT (UTC+13:45) and Seoul on UTC+9 (UTC+9), so right now Chatham is 4 hours 45 minutes ahead of Seoul.

Chatham · CHADT

Thursday, 8 October 2026

Seoul · UTC+9

Wednesday, 7 October 2026

When are both sides at work?

0003060912151821
ChathamCHADT · +13:45
0003060912151821
SeoulUTC+9 · +09:00
1922010407101316

Shared working hours: 14:00–18:00 in Chatham is 09:15–13:15 in Seoul.

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

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01:11 Thu 8 Oct Chatham = 20:26 Wed 7 Oct Seoul

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Hour-by-hour conversion

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

About this conversion

CHAST here means Chatham Time, represented by Chatham (Pacific/Chatham), currently UTC+13:45. KST means Korean Time, represented by Seoul (Asia/Seoul), currently UTC+9.

KST is used by 2 zones, including South Korea. See every meaning of KST.

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 Chatham; day boundaries are marked where the date differs.

Quick answers

  • 09:00 CHAST is 04:15 KST
  • 12:00 CHAST is 07:15 KST
  • 15:00 CHAST is 10:15 KST
  • 18:00 CHAST is 13:15 KST

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