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Convert French Guiana Time to Hawaii-Aleutian Time

GFT · UTC−3 → HAST · UTC−9

GFT is 6 hours ahead of HAST

Cayenne · UTC-3

Tuesday, 8 September 2026

Adak · HADT

Monday, 7 September 2026

When are both sides at work?

0003060912151821
CayenneUTC-3 · -03:00
0003060912151821
AdakHADT · -09:00
1821000306091215

Shared working hours: 15:00–18:00 in Cayenne is 09:00–12:00 in Adak.

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

Pick a time and share it

04:05 Tue 8 Sep Cayenne = 22:05 Mon 7 Sep Adak

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Hour-by-hour conversion

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

About this conversion

GFT here means French Guiana Time, represented by Cayenne (America/Cayenne), currently UTC−3. HAST means Hawaii-Aleutian Time, represented by Adak (America/Adak), currently UTC−9.

HAST is used by 2 zones, including United States. 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 Cayenne; day boundaries are marked where the date differs.

Quick answers

  • 09:00 GFT is 03:00 HAST
  • 12:00 GFT is 06:00 HAST
  • 15:00 GFT is 09:00 HAST
  • 18:00 GFT is 12:00 HAST

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