Timezones.in — Stay In Sync

Convert Hawaii-Aleutian Time to Kosrae Time

HAST · UTC−9 → KOST · UTC+11

HAST is 20 hours behind KOST

Adak · HADT

Monday, 7 September 2026

Kosrae · UTC+11

Tuesday, 8 September 2026

When are both sides at work?

0003060912151821
AdakHADT · -09:00
0003060912151821
KosraeUTC+11 · +11:00
2023020508111417

Shared working hours: 13:00–18:00 in Adak is 09:00–14:00 in Kosrae.

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

Pick a time and share it

22:06 Mon 7 Sep Adak = 18:06 Tue 8 Sep Kosrae

Open in planner

Post this

XLinkedInWhatsAppFacebookTelegramEmail

Hour-by-hour conversion

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

About this conversion

HAST here means Hawaii-Aleutian Time, represented by Adak (America/Adak), currently UTC−9. KOST means Kosrae Time, represented by Kosrae (Pacific/Kosrae), currently UTC+11.

HAST is used by 2 zones, including United States. If you meant a different one, see every meaning of HAST.

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 Adak; day boundaries are marked where the date differs.

Quick answers

  • 09:00 HAST is 05:00 KOST
  • 12:00 HAST is 08:00 KOST
  • 15:00 HAST is 11:00 KOST
  • 18:00 HAST is 14:00 KOST

Related conversions