World Timezones

BST-BANGLADESH to AST-ATLANTIC Converter

Compare AST-ATLANTIC to BST-BANGLADESH instead
Bangladesh Standard Time10:36 amFri, Jun 5
Bangladesh Standard TimeBST
Asia · UTC+6
10:36 amFri, Jun 5
12a
1a
2a
3a
4a
5a
6a
7a
8a
9a
10a
11a
12p
1p
2p
3p
4p
5p
6p
7p
8p
9p
10p
11p
Atlantic TimeADT
North America · UTC-3
1:36 amFri, Jun 5
3p
4p
5p
6p
7p
8p
9p
10p
11p
12a
1a
2a
3a
4a
5a
6a
7a
8a
9a
10a
11a
12p
1p
2p

Offset

The time difference between Bangladesh Standard Time and Atlantic Time is 9 hours.

9 hours

Bangladesh Standard Time (BST) is ahead of Atlantic Time (ADT).

BST: UTC+6

ADT: UTC-3

Atlantic Time is currently observing daylight saving time; Bangladesh Standard Time is not.

When to schedule

Standard business hours (9 AM–5 PM, Mon–Fri) in Bangladesh Standard Time and Atlantic Time don't overlap on the same weekday. Atlantic Time is 9 hours behind Bangladesh Standard Time.

With some flexibility, there’s a workable window outside standard hours:

  • 4 PM–8 PM in Bangladesh Standard Time (7 AM–11 AM in Atlantic Time) — suggest 6:00 PM Bangladesh Standard Time (9:00 AM Atlantic Time).

This means an early start or late finish for one side, but it’s a reasonable slot for a one-off meeting.

This window may shift by an hour during daylight saving time.

Public holidays in 2026

National public holidays can affect availability — a counterpart is likely off work on their own holidays, so it's worth planning meetings and deadlines around them.

Bangladesh

  • International Mother Language DaySat, Feb 21
  • Independence and National DayThu, Mar 26
  • Bengali New YearTue, Apr 14
  • Labour DayFri, May 1
  • July Mass Uprising DayWed, Aug 5
  • Victory DayWed, Dec 16
  • Christmas DayFri, Dec 25

Canada

  • New Year's DayThu, Jan 1
  • Good FridayFri, Apr 3
  • Victoria DayMon, May 18
  • Canada DayWed, Jul 1
  • Labour DayMon, Sep 7
  • National Day for Truth and ReconciliationWed, Sep 30
  • ThanksgivingMon, Oct 12
  • Christmas DayFri, Dec 25

About these zones

Bangladesh Standard Time is also known as BST. To call Bangladesh, dial +880.

Atlantic Time is also known as AST, or ADT. To call Canada, dial +1.

Atlantic Time is approximately 7,450 miles north of Bangladesh Standard Time.

Quick reference

Full 24-hour conversion table — tap any time to open it in the converter.

BST-BANGLADESHAST-ATLANTICDay
12:00 am3:00 pm-1 day
1:00 am4:00 pm-1 day
2:00 am5:00 pm-1 day
3:00 am6:00 pm-1 day
4:00 am7:00 pm-1 day
5:00 am8:00 pm-1 day
6:00 am9:00 pm-1 day
7:00 am10:00 pm-1 day
8:00 am11:00 pm-1 day
9:00 am12:00 amSame day
10:00 am1:00 amSame day
11:00 am2:00 amSame day
12:00 pm3:00 amSame day
1:00 pm4:00 amSame day
2:00 pm5:00 amSame day
3:00 pm6:00 amSame day
4:00 pm7:00 amSame day
5:00 pm8:00 amSame day
6:00 pm9:00 amSame day
7:00 pm10:00 amSame day
8:00 pm11:00 amSame day
9:00 pm12:00 pmSame day
10:00 pm1:00 pmSame day
11:00 pm2:00 pmSame day

Daylight saving time

Atlantic Time observes daylight saving time; Bangladesh Standard Time does not. The offset between the two zones changes when Atlantic Time transitions: on Sunday, November 1, 2026, clocks fall back from ADT to AST.

See the daylight saving time page for transition dates across every time zone.

Daylight today

Bangladesh Standard Time
Sunrise
5:12 AM
Sunset
6:44 PM
Day length
13h 32m
Atlantic Time
Sunrise
5:31 AM
Sunset
8:56 PM
Day length
15h 25m

Daylight overlap: 4h 13m — 2:31 PM–6:44 PM in Bangladesh Standard Time (5:31 AM–9:44 AM in Atlantic Time). Both locations are in daylight during this window.

Cities in these zones

Cities in Bangladesh Standard Time

Cities in Atlantic Time

Browse all cities to see the current local time anywhere.

Airports in these zones

Airports in Bangladesh Standard Time

  • DAC
  • CGP
  • JSR

Airports in Atlantic Time

  • YHZ

Related conversions

Common conversions

What is 9:00 am BST-BANGLADESH in AST-ATLANTIC?
9:00 am BST-BANGLADESH is 12:00 am AST-ATLANTIC.
What is 12:00 pm BST-BANGLADESH in AST-ATLANTIC?
12:00 pm BST-BANGLADESH is 3:00 am AST-ATLANTIC.
What is 12:30 pm BST-BANGLADESH in AST-ATLANTIC?
12:30 pm BST-BANGLADESH is 3:30 am AST-ATLANTIC.
What is 2:00 pm BST-BANGLADESH in AST-ATLANTIC?
2:00 pm BST-BANGLADESH is 5:00 am AST-ATLANTIC.
What is 5:00 pm BST-BANGLADESH in AST-ATLANTIC?
5:00 pm BST-BANGLADESH is 8:00 am AST-ATLANTIC.
What is 11:30 pm BST-BANGLADESH in AST-ATLANTIC?
11:30 pm BST-BANGLADESH is 2:30 pm AST-ATLANTIC.