Updating current time…
IranIRST
UTC+3:30
12am
3am
6am
9am
12pm
3pm
6pm
9pm
BST
UTC+1
2h 30m behind
12am
3am
6am
9am
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3pm
6pm
9pm

Quick answers

Selected conversion

3:30 pm15:30 IRST (UTC+3:30), Oct 14, 2026 = 1:00 pm13:00 BST (UTC+1), Oct 14, 2026

Īstgāh-e Rāh Āhan-e Garmsār is 2 hours and 30 minutes ahead of BST.

How the time difference changes

For most of the year, Istgah-e Rah Ahan-e Garmsar is 2 hours and 30 minutes ahead of BST. From Oct 25, 2026 to Mar 28, 2027, Istgah-e Rah Ahan-e Garmsar is 3 hours and 30 minutes ahead of GMT.

For most of the year, working hours of 9:00 am to 5:00 pm in Istgah-e Rah Ahan-e Garmsar correspond to 6:30 am to 2:30 pm in BST. At other times of the year, working hours of 9:00 am to 5:00 pm in Istgah-e Rah Ahan-e Garmsar correspond to 5:30 am to 1:30 pm in GMT.For most of the year, working hours of 09:00 to 17:00 in Istgah-e Rah Ahan-e Garmsar correspond to 06:30 to 14:30 in BST. At other times of the year, working hours of 09:00 to 17:00 in Istgah-e Rah Ahan-e Garmsar correspond to 05:30 to 13:30 in GMT.

Compare Istgah-e Rah Ahan-e Garmsar time with BST time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.

Time Difference

IRST (Iran Standard Time) is 2 hours and 30 minutes ahead of British Summer Time.
3:30 pm15:30 in Istgah-e Rah Ahan-e Garmsar, Iran is 1:00 pm13:00 in BST

Īstgāh-e Rāh Āhan-e Garmsār to BST call time
Best time for a conference call or a meeting is between 11:30am-5pm11:30-17:00 in Īstgāh-e Rāh Āhan-e Garmsār which corresponds to 9am-2:30pm09:00-14:30 in BST

3:30 pm15:30 IRST (Iran Standard Time) (Istgah-e Rah Ahan-e Garmsar, Iran). Offset UTC +3:30 hours
1:00 pm13:00 British Summer Time (BST). Offset UTC +1:00 hour

3:30 pm15:30 Istgah-e Rah Ahan-e Garmsar, Iran / 1:00 pm13:00 BST

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Hourly time comparison
Istgah-e Rah Ahan-e Garmsar, IranBST
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Īstgāh-e Rāh Āhan-e Garmsār Time Zone and Facts

Time Zone

Abbreviation / Offset
IRST – Iran Standard Time, UTC+3:30 (no daylight saving time)

Īstgāh-e Rāh Āhan-e Garmsār Facts

Country
Iran
Alternative Names
Istgah-e Garmsar, Istgah-e Rah Ahan Garmsar, Istgah-e Rah Ahan-e Garmsar, aystgah grmsar, aystgah rahahn garmsar, ystgahi garmsar, ystgahi rah ahan garmsar, ystgahi rahahani garmsar, Īstgāh-e Garmsār, Īstgāh-e Rāh Āhan Garmsār, Īstgāh-e Rāh Āhan-e Garmsār, ايستگاه راهاهن گَرمسار, ايستگاه گرمسار, يستگاهِ راه آهَن گَرمسار, يستگاهِ راهاهَنِ گَرمسار, يستگاهِ گَرمسار
Population
49,491
Currency
Rial (IRR)
Geographic Coordinates
35° 14' N Latitude / 52° 18' E Longitude
International Dialing Code
+98
More About Īstgāh-e Rāh Āhan-e Garmsār

British Summer Time

Offset: BST is 1 hour ahead of Greenwich Mean Time (GMT).

Countries using this time zone: Britain (UK), Guernsey, Isle of Man, Jersey

Principal Cities: The largest city in the BST time zone is London in the United Kingdom, with about 8.962 million people. Other major cities in this time zone include Birmingham, Glasgow, Manchester, Sheffield.

Map of the areas on British Summer Time (BST)
BST part of the year

Today all shaded areas are on BST.

Daylight Saving: British Summer Time (BST) is a daylight saving/summer time zone. During winter, some places set clocks back one hour and observe Greenwich Mean Time (GMT).

123456789101112Start: British Summer Time (BST) started on Sunday, March 29, 2026 at 1:00 am01:00 local time and clocks were set one hour forward to Sunday, March 29, 2026, 2:00 am02:00. Daylight saving starts annually on the last Sunday of March.

123456789101112End: British Summer Time (BST) ends on Sunday, October 25, 2026 at 2:00 am02:00 local time and clocks are set one hour back to Sunday, October 25, 2026, 1:00 am01:00 local standard time instead. Daylight saving ends annually on the last Sunday of October.

See upcoming clock changes worldwide.

BST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +01 - basic short
  • +0100 - basic
  • +01:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0100 - sign character (+) followed by a four digit time providing hours (01) and minutes (00) of the offset. Indicates an offset of one hour to the east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Alpha - Military abbreviation for BST
  • A - short form of 'Alpha'
IANA/Olson: Reflects BST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Europe/Belfast
  • Europe/Guernsey
  • Europe/Isle_of_Man
  • Europe/Jersey
  • Europe/London
  • GB
  • GB-Eire
BST Abbreviation: Several time zones share BST abbreviation and it could refer to these time zones
  • British Summer Time - UTC +1
  • Bangladesh Standard Time - UTC +6
  • Bougainville Standard Time - UTC +11
Time zones with the GMT +1 offset:
  • BST - British Summer Time
  • CET - Central European Time
  • IST - Irish Standard Time
  • WEST - Western European Summer Time
  • A - Alpha Time Zone
  • CET - Central European Time
  • MEZ - Mitteleuropäische Zeit
  • WAT - West Africa Time
  • WST - Western Sahara Summer Time
  • BMT - Biel Mean Time