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Convert Japan Time to Marquesas Time

JST · UTC+9 → MART · UTC−9:30

JST is 18 hours 30 minutes ahead of MART

Tokyo · UTC+9

Tuesday, 8 September 2026

Marquesas · UTC-9:30

Monday, 7 September 2026

When are both sides at work?

0003060912151821
TokyoUTC+9 · +09:00
0003060912151821
MarquesasUTC-9:30 · -09:30
0508111417202302

Shared working hours: 09:00–12:30 in Tokyo is 14:30–18:00 in Marquesas.

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

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16:06 Tue 8 Sep Tokyo = 21:36 Mon 7 Sep Marquesas

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Hour-by-hour conversion

Tokyo (JST)Marquesas (MART)
00:0005:30prev. day
01:0006:30prev. day
02:0007:30prev. day
03:0008:30prev. day
04:0009:30prev. day
05:0010:30prev. day
06:0011:30prev. day
07:0012:30prev. day
08:0013:30prev. day
09:0014:30prev. dayBoth at work
10:0015:30prev. dayBoth at work
11:0016:30prev. dayBoth at work
12:0017:30prev. dayBoth at work
13:0018:30prev. day
14:0019:30prev. day
15:0020:30prev. day
16:0021:30prev. dayNow
17:0022:30prev. day
18:0023:30prev. day
19:0000:30
20:0001:30
21:0002:30
22:0003:30
23:0004:30

About this conversion

JST here means Japan Time, represented by Tokyo (Asia/Tokyo), currently UTC+9. MART means Marquesas Time, represented by Marquesas (Pacific/Marquesas), currently UTC−9:30.

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 14:30 MART
  • 12:00 JST is 17:30 MART
  • 15:00 JST is 20:30 MART
  • 18:00 JST is 23:30 MART

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