IRST
Iran Standard Time
GMT +3:30
EET/EEST
Eastern European Time
GMT +2
EEST automatically adjusted to EET time zone, that is in use

Time Difference

Iran Standard Time is 1 hour and 30 minutes ahead of Eastern European Time
4:30 pm16:30 in IRST is 3:00 pm15:00 in EET

IRST to EEST call time
Best time for a conference call or a meeting is between 8:30am-6pm in IRST which corresponds to 8am-5:30pm in EEST

4:30 pm16:30 Iran Standard Time (IRST). Offset UTC +3:30 hours
3:00 pm15:00 Eastern European Time (EET). Offset UTC +2:00 hours

4:30 pm16:30 IRST / 3:00 pm15:00 EET

IRST EET
12am (midnight) 10:30 pm
1am 11:30 pm
2am 12:30 am
3am 1:30 am
4am 2:30 am
5am 3:30 am
6am 4:30 am
7am 5:30 am
8am 6:30 am
9am 7:30 am
10am 8:30 am
11am 9:30 am
12pm (noon) 10:30 am
1pm 11:30 am
2pm 12:30 pm
3pm 1:30 pm
4pm 2:30 pm
5pm 3:30 pm
6pm 4:30 pm
7pm 5:30 pm
8pm 6:30 pm
9pm 7:30 pm
10pm 8:30 pm
11pm 9:30 pm
0:00 22:30
1:00 23:30
2:00 0:30
3:00 1:30
4:00 2:30
5:00 3:30
6:00 4:30
7:00 5:30
8:00 6:30
9:00 7:30
10:00 8:30
11:00 9:30
12:00 10:30
13:00 11:30
14:00 12:30
15:00 13:30
16:00 14:30
17:00 15:30
18:00 16:30
19:00 17:30
20:00 18:30
21:00 19:30
22:00 20:30
23:00 21:30

Iran Standard Time

Offset: IRST is 3 hours and 30 minutes ahead Greenwich Mean Time (GMT) and is used in Asia

IRST Time Zone Geo Map
IRST timezone map

IRST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +0330 - basic
  • +03:30 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0330 - sign character (+) followed by a four digit time providing hours (03) and minutes (30) of the offset. Indicates three hour and thirty minutes time differences to the east of the zero meridian.

Eastern European Summer Time

Offset: EEST is 3 hours ahead Greenwich Mean Time (GMT) and is used in Africa

Countries: It is used in following countries: Ă…land Islands, Bulgaria, Cyprus, Estonia, Finland, Greece, Jordan, Lebanon, Lithuania, Latvia, Moldova, Palestine, Romania, Syria, Ukraine

Principal Cities: The largest city in the EEST timezone is Kiev from Ukraine with population about 2.798 million people. Other major cities in the area are Beirut, Bucharest, Aleppo, Damascus

Daylight Saving: Eastern European Summer Time (EEST) is a daylight saving/summer time zone, however during winter some places adjust time for one hour back and observe Eastern European Time (EET).

Daylight saving time clock moves back for one hour from 1am to 12amEnd: Eastern European Summer Time (EEST) has ended on Friday, October 29, 2021 at 1:00 am local time and clocks were set one hour back to Friday, October 29, 2021, 12:00 am local standard time instead. Daylight saving ends annually the on last Sunday of October

Daylight saving time clock moves forward for one hour from 12am to 1amStart: Eastern European Summer Time (EEST) starts on Friday, February 25, 2022 at 12:00 am local time and clocks are set one hour forward to Friday, February 25, 2022, 1:00 am. Daylight saving starts annually the on last Sunday of March

EEST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +03 - basic short
  • +0300 - basic
  • +03:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0300 - sign character (+) followed by a four digit time providing hours (03) and minutes (00) of the offset. Indicates three hour and zero minutes time differences to the east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Charlie - Military abbreviation for EEST
  • C - short form of 'Charlie'
IANA/Olson: Reflects EEST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Asia/Amman
  • Asia/Beirut
  • Asia/Damascus
  • Asia/Famagusta
  • Asia/Gaza
  • Asia/Hebron
  • Asia/Nicosia
  • EET
  • Europe/Athens
  • Europe/Bucharest
  • Europe/Chisinau
  • Europe/Helsinki
  • Europe/Kiev
  • Europe/Mariehamn
  • Europe/Nicosia
  • Europe/Riga
  • Europe/Sofia
  • Europe/Tallinn
  • Europe/Tiraspol
  • Europe/Uzhgorod
  • Europe/Vilnius
  • Europe/Zaporozhye
Time zones with the GMT +3 offset:
  • EEST - Eastern European Summer Time
  • MSK - Moscow Standard Time
  • AST - Arabia Standard Time
  • C - Charlie Time Zone
  • EAT - Eastern Africa Time
  • FET - Further Eastern European Time
  • IDT - Israel Daylight Time
  • TRT - Turkey Time