BST to PET
-6hBST
BSTSOURCEPET
PETGreen rows indicate typical business hours (9 AM - 5 PM)
BST and PET on the World Map
The map below highlights the BST (British Summer Time) and PET (Peru Time) timezone regions across the globe.
BST – British Summer Time
UTC+01:00British Summer Time (BST, UTC+01:00) is the daylight saving period in the United Kingdom, running from late March to late October.
- •BST runs from the last Sunday in March to the last Sunday in October.
- •BST is exactly one hour ahead of GMT, the UK's standard time.
- •During BST, London is 4 hours ahead of New York while the US is on Eastern Daylight Time.
- •The Isle of Man and the Channel Islands also observe BST.
PET – Peru Time
UTC-05:00Peru Time (PET) is the standard time for Peru, 5 hours behind UTC.
- •Peru does not observe daylight saving time.
- •PET is the same offset as EST (UTC-05:00).
- •Lima is the 5th largest city in the Americas.
Time Conversion Guide: BST to PET
BST runs on British Summer Time (BST) at UTC+01:00. PET runs on Peru Time (PET) at UTC-05:00. That puts BST 6 hours behind PET — a difference of -6h at the current offsets.
In practice, when it is 9:00 AM in BST it is 3:00 AM in PET. Midnight in BST is 6:00 PM in PET. Neither zone observes daylight saving time, so the offset between them stays constant all year.
BST to PET time conversion table
| BST (BST) | PET (PET) | Day |
|---|---|---|
| 12:00 AM | 6:00 PM | previous day |
| 6:00 AM | 12:00 AM | same day |
| 7:00 AM | 1:00 AM | same day |
| 8:00 AM | 2:00 AM | same day |
| 9:00 AM | 3:00 AM | same day |
| 12:00 PM | 6:00 AM | same day |
| 3:00 PM | 9:00 AM | same day |
| 5:00 PM | 11:00 AM | same day |
| 6:00 PM | 12:00 PM | same day |
| 9:00 PM | 3:00 PM | same day |
Why people convert BST to PET time
- Scheduling a call from BST to PET: a 10:00 AM start in BST lands at 4:00 AM in PET, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both BST and PET are inside the 9-to-5 working day between 3:00 PM and 5:00 PM BST time (9:00 AM–11:00 AM PET). That is roughly 2 hours of usable overlap.
- Booking travel or deliveries: tracking PET local time against BST keeps pickup windows and arrival estimates honest across the -6h offset.
- Always state the zone abbreviation, not just the hour. "3:00 PM BST" is unambiguous; "3 PM" across a -6h gap is not.
- Block 3:00 PM–5:00 PM BST as the recurring meeting window if you work primarily from BST and need PET colleagues present.
About BST (British Summer Time)
British Summer Time (BST) is the daylight saving period in the United Kingdom, when clocks move one hour forward from Greenwich Mean Time (GMT, UTC+00:00) to UTC+01:00. It runs from the last Sunday in March to the last Sunday in October. England, Scotland, Wales and Northern Ireland all follow it, along with the Isle of Man and the Channel Islands of Jersey and Guernsey. During BST, London is one hour ahead of UTC, four hours ahead of New York on Eastern Daylight Time, and five hours ahead of New York once the United States returns to Eastern Standard Time in November. BST is also used to abbreviate Bangladesh Standard Time (UTC+06:00), which is listed separately on this site.
About PET (Peru Time)
Peru Time (PET) is the time zone used throughout Peru. Peru does not observe daylight saving time. PET shares the same offset as EST (UTC-05:00). Lima, the capital, is the economic center of Peru.
Best time to call between BST and PET
Both BST and PET sit inside the 9 AM – 5 PM working day between 3:00 PM–5:00 PM BST, which is 9:00 AM–11:00 AM PET. That gives roughly 2 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
BST and PET overlap for about 2 hours during the working day — enough for meetings if you avoid the edges of the window.
BST is 6 hours behind PET (BST UTC+01:00 → PET UTC-05:00). The shared working window is 3:00 PM–5:00 PM BST. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
BST
☀ Currently in DST
Standard: UTC+00:00 · DST: UTC+01:00
Clocks fall back on Sun, Oct 25, 2026
PET
Does not observe DST
Learn More About Time
Dive deeper into the fascinating world of timekeeping, time zones, and how they shape our global society:
Frequently Asked Questions
What is the time difference between BST and PET?
BST (BST, UTC+01:00) is 6 hours behind PET (PET, UTC-05:00). The gap is currently -6h.
How do I convert BST time to PET time?
Add -6h to BST local time. For example, 9:00 AM in BST is 3:00 AM in PET.
What time is it in PET right now?
PET uses PET at UTC-05:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -6h offset from BST.
What is the best time to call PET from BST?
Call between 3:00 PM and 5:00 PM BST — that maps to 9:00 AM–11:00 AM PET and keeps both parties inside the working day.
Which is behind, BST or PET?
BST is 6 hours behind PET. When it is 12:00 PM in BST it is 6:00 AM in PET.
Does daylight saving time affect the BST–PET difference?
Neither zone observes daylight saving time, so the -6h offset between BST and PET is fixed all year.
Which other cities share BST's time zone?
BST also covers London, Birmingham, Manchester, Glasgow, Edinburgh, Cardiff, Belfast, Liverpool and 2 more.
Which countries use BST, BST's zone?
BST is used in United Kingdom.
Is there a day difference between BST and PET?
Not normally. The -6h gap only pushes the date over the previous day.
What is the time difference between BST and PET?
PET is -6h from BST.
What timezone is BST in?
BST operates on its local timezone.
What timezone is PET in?
PET operates on its local timezone.
Which countries use BST (British Summer Time)?
BST is used in United Kingdom.
Does BST observe daylight saving time?
Yes, BST switches to BST during summer months.
What are some interesting facts about BST?
BST runs from the last Sunday in March to the last Sunday in October. BST is exactly one hour ahead of GMT, the UK's standard time.
Which cities are in the PET timezone?
Major cities in the PET timezone include Lima, Arequipa, Trujillo, Cusco, Callao.
What is the UTC offset for PET?
Peru Time (PET) is at UTC-05:00.
What should I know about the PET timezone?
Peru does not observe daylight saving time. PET is the same offset as EST (UTC-05:00).
When is it midnight in BST, what time is it in PET?
When it is 12:00 AM (midnight) in BST (BST), it is -6h later in PET (PET).
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See every conversion from BST →·See every conversion from PET →