ADT Time to BST Time Converter

AST = UTC - 04:00

04:17:19

Wednesday, December 17, 2025

BST = UTC + 11:00

19:17:19

Wednesday, December 17, 2025

AST(Atlantic Standard Time) and BST(Bougainville Standard Time) Mapping Table
Atlantic Standard Time(AST)Bougainville Standard Time(BST)
00:0015:00
01:0016:00
02:0017:00
03:0018:00
04:0019:00
05:0020:00
06:0021:00
07:0022:00
08:0023:00
09:0000:00+1 day
10:0001:00+1 day
11:0002:00+1 day
12:0003:00+1 day
13:0004:00+1 day
14:0005:00+1 day
15:0006:00+1 day
16:0007:00+1 day
17:0008:00+1 day
18:0009:00+1 day
19:0010:00+1 day
20:0011:00+1 day
21:0012:00+1 day
22:0013:00+1 day
23:0014:00+1 day

AST(Atlantic Standard Time)

Atlantic Standard Time(AST) is 04:00 hours behind Coordinated Universal(UTC) Time.This timezone is used during standard time in: North America

Typical City of AST (Atlantic Standard Time)

Canada - Halifax (Winter)
Canada - Blanc-Sablon (All Year)
Bermuda - Hamilton (Winter)
Dominican Republic - Santo Domingo (All Year)
Sint Maarten - Philipsburg (All Year)

BST(Bougainville Standard Time)

Bougainville Standard Time(BST) is 11:00 hours ahead of Coordinated Universal(UTC) Time.This timezone is used during standard time in: Pacific

Typical City of BST (Bougainville Standard Time)

Papua New Guinea - Arawa (All Year)