World Timezones

IRST to MSK Converter

Compare MSK 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
Moscow TimeMSK
Europe · UTC+3
7:36 amFri, Jun 5
11p
12a
1a
2a
3a
4a
5a
6a
7a
8a
9a
10a
11a
12p
1p
2p
3p
4p
5p
6p
7p
8p
9p
10p

Offset

The time difference between Iran Standard Time and Moscow Time is 0.5 hours.

0.5 hours

Iran Standard Time (IRST) is ahead of Moscow Time (MSK).

IRST: UTC+3:30

MSK: UTC+3

Neither Iran Standard Time nor Moscow Time is currently observing daylight saving time.

When to schedule

Business-hours overlap: 10 AM–5 PM in Iran Standard Time (9 AM–4 PM in Moscow Time).

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

Suggested time: 1:00 PM Iran Standard Time (12:30 PM Moscow 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.

Russia

  • New Year's DayThu, Jan 1
  • New Year holidayFri, Jan 2
  • New Year holidaySat, Jan 3
  • New Year holidaySun, Jan 4
  • New Year holidayMon, Jan 5
  • New Year holidayTue, Jan 6
  • Christmas Day (Orthodox)Wed, Jan 7
  • Defender of the Fatherland DayMon, Feb 23
  • International Women's DaySun, Mar 8
  • Labour DayFri, May 1
  • Victory DaySat, May 9
  • Russia DayFri, Jun 12
  • Unity DayWed, Nov 4

About these zones

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

Moscow Time is also known as MSK. To call Russia, dial +7.

Moscow Time is approximately 1,550 miles north of Iran Standard Time.

Quick reference

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

IRSTMSKDay
12:00 am11:30 pm-1 day
1:00 am12:30 amSame day
2:00 am1:30 amSame day
3:00 am2:30 amSame day
4:00 am3:30 amSame day
5:00 am4:30 amSame day
6:00 am5:30 amSame day
7:00 am6:30 amSame day
8:00 am7:30 amSame day
9:00 am8:30 amSame day
10:00 am9:30 amSame day
11:00 am10:30 amSame day
12:00 pm11:30 amSame day
1:00 pm12:30 pmSame day
2:00 pm1:30 pmSame day
3:00 pm2:30 pmSame day
4:00 pm3:30 pmSame day
5:00 pm4:30 pmSame day
6:00 pm5:30 pmSame day
7:00 pm6:30 pmSame day
8:00 pm7:30 pmSame day
9:00 pm8:30 pmSame day
10:00 pm9:30 pmSame day
11:00 pm10:30 pmSame day

Daylight saving time

Neither Iran Standard Time nor Moscow Time observes daylight saving time. The offset between these zones remains constant year-round.

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
Moscow Time
Sunrise
3:51 AM
Sunset
9:07 PM
Day length
17h 17m

Daylight overlap: 14h 28m — 4:50 AM–7:18 PM in Iran Standard Time (4:20 AM–6:48 PM in Moscow 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

Airports in Moscow Time

  • DME
  • SVO
  • VKO
  • ZIA
  • LED
  • GOJ

Related conversions

Common conversions

What is 9:00 am IRST in MSK?
9:00 am IRST is 8:30 am MSK.
What is 12:00 pm IRST in MSK?
12:00 pm IRST is 11:30 am MSK.
What is 12:30 pm IRST in MSK?
12:30 pm IRST is 12:00 pm MSK.
What is 2:00 pm IRST in MSK?
2:00 pm IRST is 1:30 pm MSK.
What is 5:00 pm IRST in MSK?
5:00 pm IRST is 4:30 pm MSK.
What is 11:30 pm IRST in MSK?
11:30 pm IRST is 11:00 pm MSK.