Timezones.in — Stay In Sync

Convert Greenwich Mean Time to Marquesas Time

GMT · UTC+1 → MART · UTC−9:30

GMT is 10 hours 30 minutes ahead of MART

London · BST

Tuesday, 8 September 2026

Marquesas · UTC-9:30

Monday, 7 September 2026

When are both sides at work?

0003060912151821
LondonBST · +01:00
0003060912151821
MarquesasUTC-9:30 · -09:30
1316192201040710

No overlap in standard working hours. Closest workable window: 19:30–23:00 in London, which is 09:00–12:30 in Marquesas.

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

Pick a time and share it

08:05 Tue 8 Sep London = 21:35 Mon 7 Sep Marquesas

Open in planner

Post this

XLinkedInWhatsAppFacebookTelegramEmail

Hour-by-hour conversion

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

About this conversion

GMT here means Greenwich Mean Time, represented by London (Europe/London), currently UTC+1. MART means Marquesas Time, represented by Marquesas (Pacific/Marquesas), currently UTC−9:30.

GMT is used by 22 zones, including United Kingdom. If you meant a different one, see every meaning of GMT.

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 London; day boundaries are marked where the date differs.

Quick answers

  • 09:00 GMT is 22:30 MART
  • 12:00 GMT is 01:30 MART
  • 15:00 GMT is 04:30 MART
  • 18:00 GMT is 07:30 MART

Related conversions