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Convert Atlantic Time to Dumont-d’Urville Time

AST · UTC−4 → DDUT · UTC+10

AST is 14 hours behind DDUT

Today Halifax is on ADT (UTC−3) and DumontDUrville on UTC+10 (UTC+10), so right now Halifax is 13 hours behind DumontDUrville.

Halifax · ADT

Wednesday, 7 October 2026

DumontDUrville · UTC+10

Wednesday, 7 October 2026

When are both sides at work?

0003060912151821
HalifaxADT · -03:00
0003060912151821
DumontDUrvilleUTC+10 · +10:00
1316192201040710

No overlap in standard working hours. Closest workable window: 20:00–23:00 in Halifax, which is 09:00–12:00 in DumontDUrville.

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

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08:24 Wed 7 Oct Halifax = 21:24 Wed 7 Oct DumontDUrville

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Hour-by-hour conversion

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

About this conversion

AST here means Atlantic Time, represented by Halifax (America/Halifax), currently UTC−3. DDUT means Dumont-d’Urville Time, represented by DumontDUrville (Antarctica/DumontDUrville), currently UTC+10.

AST is used by 32 zones, including Canada. If you meant a different one, see every meaning of AST.

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 Halifax; day boundaries are marked where the date differs.

Quick answers

  • 09:00 AST is 22:00 DDUT
  • 12:00 AST is 01:00 DDUT
  • 15:00 AST is 04:00 DDUT
  • 18:00 AST is 07:00 DDUT

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