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Convert Japan Time to West Greenland Time

JST · UTC+9 → WGT · UTC−1

JST is 10 hours ahead of WGT

Tokyo · UTC+9

Tuesday, 8 September 2026

Nuuk · UTC-1

Tuesday, 8 September 2026

When are both sides at work?

0003060912151821
TokyoUTC+9 · +09:00
0003060912151821
NuukUTC-1 · -01:00
1417202302050811

No overlap in standard working hours. Closest workable window: 19:00–23:00 in Tokyo, which is 09:00–13:00 in Nuuk.

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

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16:06 Tue 8 Sep Tokyo = 06:06 Tue 8 Sep Nuuk

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Hour-by-hour conversion

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

About this conversion

JST here means Japan Time, represented by Tokyo (Asia/Tokyo), currently UTC+9. WGT means West Greenland Time, represented by Nuuk (America/Nuuk), currently UTC−1.

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 Tokyo; day boundaries are marked where the date differs.

Quick answers

  • 09:00 JST is 23:00 WGT
  • 12:00 JST is 02:00 WGT
  • 15:00 JST is 05:00 WGT
  • 18:00 JST is 08:00 WGT

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