BST to TMT Converter
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Add one or more places to compare local times, adjust the date, and share the result.
Quick answers
Selected conversion
1:00 pm13:00 BST (UTC+1), Oct 13, 2026 = 5:00 pm17:00 TMT (UTC+5), Oct 13, 2026
BST is 4 hours behind TMT.
BST and TMT examples
These examples always use BST (UTC+1) and TMT (UTC+5). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.
BST is 4 hours behind TMT.
How the time difference changes
For most of the year, BST is 4 hours behind TMT. From Oct 25, 2026 to Mar 28, 2027, GMT is 5 hours behind TMT.
For most of the year, working hours of 9:00 am to 5:00 pm in BST correspond to 1:00 pm to 9:00 pm in TMT. At other times of the year, working hours of 9:00 am to 5:00 pm in GMT correspond to 2:00 pm to 10:00 pm in TMT.For most of the year, working hours of 09:00 to 17:00 in BST correspond to 13:00 to 21:00 in TMT. At other times of the year, working hours of 09:00 to 17:00 in GMT correspond to 14:00 to 22:00 in TMT.
Compare BST time with TMT time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
British Summer Time is 4 hours behind Turkmenistan Time.
1:00 pm13:00 in BST is 5:00 pm17:00 in TMT
BST to TMT call time
Best time for a conference call or a meeting is between 9am-1pm09:00-13:00 in BST which corresponds to 1pm-5pm13:00-17:00 in TMT
1:00 pm13:00 British Summer Time (BST). Offset UTC +1:00 hour
5:00 pm17:00 Turkmenistan Time (TMT). Offset UTC +5:00 hours
1:00 pm13:00 BST / 5:00 pm17:00 TMT
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.
| BST | TMT |
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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.
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).
Start: 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.
End: 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.
BST representations, usage and related time zones
- +01 - basic short
- +0100 - basic
- +01:00 - extended
- +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.
- Alpha - Military abbreviation for BST
- A - short form of 'Alpha'
- Europe/Belfast
- Europe/Guernsey
- Europe/Isle_of_Man
- Europe/Jersey
- Europe/London
- GB
- GB-Eire
- British Summer Time - UTC +1
- Bangladesh Standard Time - UTC +6
- Bougainville Standard Time - UTC +11
- 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
Turkmenistan Time
Offset: TMT is 5 hours ahead of Greenwich Mean Time (GMT).
Countries using this time zone: Turkmenistan
Principal Cities: The largest city in the TMT time zone is Ashgabat in Turkmenistan, with about 1.03 million people. Other major cities in this time zone include Türkmenabat, Daşoguz, Mary, Türkmenbaşy.
Daylight Saving: Clocks in Turkmenistan Time (TMT) do not change for daylight saving time, so TMT stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter; see upcoming clock changes worldwide.
TMT representations, usage and related time zones
- +05 - basic short
- +0500 - basic
- +05:00 - extended
- +0500 - sign character (+) followed by a four digit time providing hours (05) and minutes (00) of the offset. Indicates an offset of five hours to the east of the zero meridian.
- Echo - Military abbreviation for TMT
- E - short form of 'Echo'
- AMST - Armenia Summer Time
- AQTT - Aqtobe Time
- AZST - Azerbaijan Summer Time
- E - Echo Time Zone
- MAWT - Mawson Time
- MVT - Maldives Time
- ORAT - Oral Time
- PKT - Pakistan Standard Time
- TFT - French Southern and Antarctic Time
- TJT - Tajikistan Time
- TMT - Turkmenistan Time
- UZT - Uzbekistan Time
- YEKT - Yekaterinburg Time
- HMT - Heard and McDonald Islands Time