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Convert French Guiana Time to Japan Time

GFT · UTC−3 → JST · UTC+9

GFT is 12 hours behind JST

Cayenne · UTC-3

Tuesday, 8 September 2026

Tokyo · UTC+9

Tuesday, 8 September 2026

When are both sides at work?

0003060912151821
CayenneUTC-3 · -03:00
0003060912151821
TokyoUTC+9 · +09:00
1215182100030609

No overlap in standard working hours. Closest workable window: 09:00–11:00 in Cayenne, which is 21:00–23:00 in Tokyo.

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

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04:05 Tue 8 Sep Cayenne = 16:05 Tue 8 Sep Tokyo

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Hour-by-hour conversion

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

About this conversion

GFT here means French Guiana Time, represented by Cayenne (America/Cayenne), currently UTC−3. JST means Japan Time, represented by Tokyo (Asia/Tokyo), currently UTC+9.

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 21:00 JST
  • 12:00 GFT is 00:00 JST
  • 15:00 GFT is 03:00 JST
  • 18:00 GFT is 06:00 JST

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