World Timezones

IRST to NST Converter

Compare NST to IRST instead
Iran Standard Time8:06 amFri, Jun 5
Iran Standard TimeIRST
Middle East · UTC+3:30
8:06 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
Newfoundland TimeNDT
North America · UTC-2:30
2:06 amFri, Jun 5
6p
7p
8p
9p
10p
11p
12a
1a
2a
3a
4a
5a
6a
7a
8a
9a
10a
11a
12p
1p
2p
3p
4p
5p

Offset

The time difference between Iran Standard Time and Newfoundland Time is 6 hours.

6 hours

Iran Standard Time (IRST) is ahead of Newfoundland Time (NDT).

IRST: UTC+3:30

NDT: UTC-2:30

Newfoundland Time is currently observing daylight saving time; Iran Standard Time is not.

When to schedule

Business-hours overlap: 3 PM–5 PM in Iran Standard Time (9 AM–11 AM in Newfoundland Time).

Both teams are in working hours during this window on weekdays.

Suggested time: 4:00 PM Iran Standard Time (10:00 AM Newfoundland Time).

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.

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

Iran Standard Time is also known as IRST. To call Iran, dial +98.

Newfoundland Time is also known as NST, or NDT. To call Canada, dial +1.

Newfoundland Time is approximately 5,000 miles northwest of Iran Standard Time.

Quick reference

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

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

Daylight saving time

Newfoundland Time observes daylight saving time; Iran Standard Time does not. The offset between the two zones changes when Newfoundland Time transitions: on Sunday, November 1, 2026, clocks fall back from NDT to NST.

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

Daylight today

Iran Standard Time
Sunrise
4:50 AM
Sunset
7:18 PM
Day length
14h 28m
Newfoundland Time
Sunrise
5:06 AM
Sunset
8:54 PM
Day length
15h 48m

Daylight overlap: 8h 12m — 11:06 AM–7:18 PM in Iran Standard Time (5:06 AM–1:18 PM in Newfoundland Time). Both locations are in daylight during this window.

Cities in these zones

Cities in Iran Standard Time

Browse all cities to see the current local time anywhere.

Airports in these zones

Airports in Iran Standard Time

  • IKA
  • THR
  • MHD
  • IFN
  • PYK
  • TBZ

Related conversions

Common conversions

What is 9:00 am IRST in NST?
9:00 am IRST is 3:00 am NST.
What is 12:00 pm IRST in NST?
12:00 pm IRST is 6:00 am NST.
What is 12:30 pm IRST in NST?
12:30 pm IRST is 6:30 am NST.
What is 2:00 pm IRST in NST?
2:00 pm IRST is 8:00 am NST.
What is 5:00 pm IRST in NST?
5:00 pm IRST is 11:00 am NST.
What is 11:30 pm IRST in NST?
11:30 pm IRST is 5:30 pm NST.