BST to PYST Converter
Quick answers
Selected conversion
1:00 pm BST (UTC+1), Oct 3, 2026 = 9:00 am PYST (UTC-3), Oct 3, 202613:00 BST (UTC+1), Oct 3, 2026 = 09:00 PYST (UTC-3), Oct 3, 2026
BST is 4 hours ahead of PYST.
BST and PYST examples
These examples always use BST (UTC+1) and PYST (UTC-3). 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 ahead of PYST.
How the time difference changes
For most of the year, BST is 4 hours ahead of PYST. At other times of the year, GMT is 3 hours ahead of PYST.
For most of the year, working hours of 9:00 am to 5:00 pm in BST correspond to 5:00 am to 1:00 pm in PYST. At other times of the year, working hours of 9:00 am to 5:00 pm in GMT correspond to 6:00 am to 2:00 pm in PYST.For most of the year, working hours of 09:00 to 17:00 in BST correspond to 05:00 to 13:00 in PYST. At other times of the year, working hours of 09:00 to 17:00 in GMT correspond to 06:00 to 14:00 in PYST.
Compare BST time with PYST 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 ahead of Paraguay Summer Time
1:00 pm13:00 in BST is 9:00 am09:00 in PYST
BST to PYST call time
Best time for a conference call or a meeting is between 1pm-5pm13:00-17:00 in BST which corresponds to 9am-1pm09:00-13:00 in PYST
1:00 pm13:00 British Summer Time (BST). Offset UTC +1:00 hour
9:00 am09:00 Paraguay Summer Time (PYST). Offset UTC -3:00 hours
1:00 pm13:00 BST / 9:00 am09:00 PYST
| BST | PYST |
|---|---|
| 12am (midnight) | 8pm |
| 1am | 9pm |
| 2am | 10pm |
| 3am | 11pm |
| 4am | 12am (midnight) |
| 5am | 1am |
| 6am | 2am |
| 7am | 3am |
| 8am | 4am |
| 9am | 5am |
| 10am | 6am |
| 11am | 7am |
| 12pm (noon) | 8am |
| 1pm | 9am |
| 2pm | 10am |
| 3pm | 11am |
| 4pm | 12pm (noon) |
| 5pm | 1pm |
| 6pm | 2pm |
| 7pm | 3pm |
| 8pm | 4pm |
| 9pm | 5pm |
| 10pm | 6pm |
| 11pm | 7pm |
| 00:00 | 20:00 |
| 01:00 | 21:00 |
| 02:00 | 22:00 |
| 03:00 | 23:00 |
| 04:00 | 00:00 |
| 05:00 | 01:00 |
| 06:00 | 02:00 |
| 07:00 | 03:00 |
| 08:00 | 04:00 |
| 09:00 | 05:00 |
| 10:00 | 06:00 |
| 11:00 | 07:00 |
| 12:00 | 08:00 |
| 13:00 | 09:00 |
| 14:00 | 10:00 |
| 15:00 | 11:00 |
| 16:00 | 12:00 |
| 17:00 | 13:00 |
| 18:00 | 14:00 |
| 19:00 | 15:00 |
| 20:00 | 16:00 |
| 21:00 | 17:00 |
| 22:00 | 18:00 |
| 23:00 | 19:00 |
British Summer Time
Offset: BST is 1 hour ahead Greenwich Mean Time (GMT) and is used in Europe
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 United Kingdom, with about 8.962 million people. Other major cities in this time zone include Birmingham, Glasgow, Liverpool, Saint Helier.

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
Paraguay Summer Time
Offset: PYST is 3 hours behind Greenwich Mean Time (GMT) and is used in South America
Countries using this time zone: Paraguay
Principal Cities: The largest city in the PYST time zone is Asuncion in Paraguay, with about 1.482 million people. Other major cities in this time zone include Ciudad del Este, San Lorenzo, Capiata, Lambare.
Daylight Saving: Clocks in Paraguay Summer Time (PYST) do not change for daylight saving time, so PYST stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter; see upcoming clock changes worldwide.

PYST representations, usage and related time zones
- -03 - basic short
- -0300 - basic
- -03:00 - extended
- -0300 - sign character (-) followed by a four digit time providing hours (03) and minutes (00) of the offset. Indicates an offset of three hours to the west of the zero meridian.
- Papa - Military abbreviation for PYST
- P - short form of 'Papa'
- ADT - Atlantic Daylight Time
- PMT - Pierre & Miquelon Standard Time
- PMST - Pierre & Miquelon Standard Time
- AMST - Amazon Summer Time
- ART - Argentina Time
- BRT - Brasília time
- CLST - Chile Summer Time
- FKST - Falkland Islands Summer Time
- GFT - French Guiana Time
- P - Papa Time Zone
- PYST - Paraguay Summer Time
- SRT - Suriname Time
- UYT - Uruguay Time
