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BST
12am
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IDT/IST
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IST is not used on this date.

This converter uses IDT (UTC+3), as in Jerusalem.

Quick answers

Selected conversion

1:00 pm13:00 BST (UTC+1), Oct 18, 2026 = 3:00 pm15:00 IDT (UTC+3), Oct 18, 2026

BST is 2 hours behind IDT.

BST and IST examples

These examples always use BST (UTC+1) and IST (UTC+2). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.

BST is 1 hour behind IST.

How the time difference changes

For most of the year, BST is 2 hours behind IDT Israel. From Oct 25, 2026 to Mar 26, 2027, GMT is 2 hours behind IST Israel. From Mar 26 to Mar 28, 2027, GMT is 3 hours behind IDT Israel. Briefly around clock changes, BST is 1 hour behind IST Israel.

For most of the year, working hours of 9:00 am to 6:00 pm in BST correspond to 11:00 am to 8:00 pm in IDT Israel. At other times of the year, working hours of 9:00 am to 6:00 pm in GMT correspond to 11:00 am to 8:00 pm in IST Israel or working hours of 9:00 am to 6:00 pm in GMT correspond to 12:00 pm to 9:00 pm in IDT Israel.For most of the year, working hours of 09:00 to 18:00 in BST correspond to 11:00 to 20:00 in IDT Israel. At other times of the year, working hours of 09:00 to 18:00 in GMT correspond to 11:00 to 20:00 in IST Israel or working hours of 09:00 to 18:00 in GMT correspond to 12:00 to 21:00 in IDT Israel.

Compare BST time with IST time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.

Time Difference

British Summer Time is 2 hours behind Israel Daylight Time.
1:00 pm13:00 in BST is 3:00 pm15:00 in IDT

BST to IDT call time
Best time for a conference call or a meeting is between 9am-4pm09:00-16:00 in BST which corresponds to 11am-6pm11:00-18:00 in IDT

1:00 pm13:00 British Summer Time (BST). Offset UTC +1:00 hour
3:00 pm15:00 Israel Daylight Time (IDT). Offset UTC +3:00 hours

1:00 pm13:00 BST / 3:00 pm15:00 IDT

Choose an hour to update the converter. Day labels such as “next day” or “+1” are relative to the selected date in the first column. Use Up and Down arrow keys, Home or End to move between hours, then Enter or Space to select.

Hourly time comparison
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British Summer Time

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

Countries using this time zone: Guernsey, Isle of Man, Jersey, United Kingdom

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.

Current time in the United Kingdom: UK time now

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 United Kingdom daylight saving time and 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

Israel Standard Time

Offset: IST is 2 hours ahead of Greenwich Mean Time (GMT).

Countries using this time zone: Israel

Principal Cities: The largest city in the IST time zone is Jerusalem in Israel, with about 971,800 people. Other major cities in this time zone include Tel Aviv, Haifa, Rishon LeTsiyyon, Petaẖ Tiqva.

Map of the areas on Israel Standard Time (IST)
IST part of the year

Today the shaded areas are on UTC+3 (IDT).

Daylight Saving: This is a standard time zone. During summer, some places set clocks forward one hour for daylight saving time and observe Israel Daylight Time (IDT).

123456789101112End: Israel Standard Time (IST) ended on Friday, March 27, 2026 at 2:00 am02:00 local time and clocks were set one hour forward to Friday, March 27, 2026, 3:00 am03:00 local daylight time instead.

123456789101112Start: Israel Standard Time (IST) starts 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. Standard time starts annually on the last Sunday of October.

See Israel daylight saving time and upcoming clock changes worldwide.

IST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +02 - basic short
  • +0200 - basic
  • +02:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0200 - sign character (+) followed by a four digit time providing hours (02) and minutes (00) of the offset. Indicates an offset of two hours to the east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Bravo - Military abbreviation for IST
  • B - short form of 'Bravo'
IANA/Olson: Reflects IST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Asia/Jerusalem
  • Asia/Tel_Aviv
  • Israel
IST Abbreviation: Several time zones share IST abbreviation and it could refer to these time zones
  • India Standard Time - UTC +5:30
  • Irish Standard Time - UTC +1
  • Israel Standard Time - UTC +2
Time zones with the GMT +2 offset:
  • CEST - Central European Summer Time
  • EET - Eastern European Time
  • MESZ - Mitteleuropäische Sommerzeit
  • B - Bravo Time Zone
  • CAT - Central Africa Time
  • IST - Israel Standard Time
  • SAST - South Africa Standard Time
  • WAST - West Africa Summer Time