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Convert Atlantic Time to Vostok Time

AST · UTC−4 → VOST · UTC+5

AST is 9 hours behind VOST

Today Halifax is on ADT (UTC−3) and Mawson on UTC+5 (UTC+5), so right now Halifax is 8 hours behind Mawson.

Halifax · ADT

Wednesday, 7 October 2026

Mawson · UTC+5

Wednesday, 7 October 2026

When are both sides at work?

0003060912151821
HalifaxADT · -03:00
0003060912151821
MawsonUTC+5 · +05:00
0811141720230205

Shared working hours: 09:00–10:00 in Halifax is 17:00–18:00 in Mawson.

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

Pick a time and share it

08:25 Wed 7 Oct Halifax = 16:25 Wed 7 Oct Mawson

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Hour-by-hour conversion

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

About this conversion

AST here means Atlantic Time, represented by Halifax (America/Halifax), currently UTC−3. VOST means Vostok Time, represented by Mawson (Antarctica/Vostok), currently UTC+5.

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 17:00 VOST
  • 12:00 AST is 20:00 VOST
  • 15:00 AST is 23:00 VOST
  • 18:00 AST is 02:00 VOST

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