GMT to PET Converter & Meeting Planner
Quick answer: 9:00 AM GMT = 4:00 AM PET (fixed +00:00 standard offset — not DST-adjusted). Use the interactive converter below for DST-aware local-time scheduling.
Planning a call or meeting between Greenwich Mean Time (GMT) and Peru Time (PET)? You need to account for the standard time difference. Peru Time is normally 5 hours behind Greenwich Mean Time. Whether you are coordinating between teams in London and Dublin and Lima and Arequipa, our live tool has you covered. Use our interactive overlap studio below to find the perfect waking hours for both regions, taking into account any seasonal Daylight Saving Time (DST) changes.
24-Hour Conversion Table
Quick reference: 12:00 AM GMT = 7:00 PM PET. The full 24-hour GMT to PET table below uses fixed standard offsets for exact abbreviation searches.
Example: 3:00 PM GMT = 10:00 AM PET.
| GMT Time | PET Time |
|---|---|
| 12:00 AM (00:00) | 7:00 PM (19:00)-1 day |
| 1:00 AM (01:00) | 8:00 PM (20:00)-1 day |
| 2:00 AM (02:00) | 9:00 PM (21:00)-1 day |
| 3:00 AM (03:00) | 10:00 PM (22:00)-1 day |
| 4:00 AM (04:00) | 11:00 PM (23:00)-1 day |
| 5:00 AM (05:00) | 12:00 AM (00:00) |
| 6:00 AM (06:00) | 1:00 AM (01:00) |
| 7:00 AM (07:00) | 2:00 AM (02:00) |
| 8:00 AM (08:00) | 3:00 AM (03:00) |
| 9:00 AM (09:00) | 4:00 AM (04:00) |
| 10:00 AM (10:00) | 5:00 AM (05:00) |
| 11:00 AM (11:00) | 6:00 AM (06:00) |
| 12:00 PM (12:00) | 7:00 AM (07:00) |
| 1:00 PM (13:00) | 8:00 AM (08:00) |
| 2:00 PM (14:00) | 9:00 AM (09:00) |
| 3:00 PM (15:00) | 10:00 AM (10:00) |
| 4:00 PM (16:00) | 11:00 AM (11:00) |
| 5:00 PM (17:00) | 12:00 PM (12:00) |
| 6:00 PM (18:00) | 1:00 PM (13:00) |
| 7:00 PM (19:00) | 2:00 PM (14:00) |
| 8:00 PM (20:00) | 3:00 PM (15:00) |
| 9:00 PM (21:00) | 4:00 PM (16:00) |
| 10:00 PM (22:00) | 5:00 PM (17:00) |
| 11:00 PM (23:00) | 6:00 PM (18:00) |
Best time to call Lima from London
For most work calls, compare the normal business day in London (GMT) with the business day in Lima (PET). GMT commonly covers Europe, Africa, while PET is mainly associated with South America.
⚠️ Note: 2026-07-05 is not a normal workday in one or both regions based on their configured calendar. The overlap below should be treated as a reference, not a guaranteed office-hours window.
✅ The most practical overlap on 2026-07-05 is usually 3:00 PM - 5:00 PM GMT, which corresponds to 9:00 AM - 11:00 AM PET. This window sits inside the typical GMT workday (9:00 AM - 5:00 PM) and the PET workday (9:00 AM - 6:00 PM).
- DST Safety: GMT or PET may shift during Daylight Saving Time. Always confirm the converted time for your specific date.
- London Stock Exchange: 08:00-16:30 local time in London.
- Lima Stock Exchange (BVL): 09:00-15:00 local time in Lima.
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Frequently Asked Questions
What is the time difference between GMT and PET?
During standard time, Peru Time is 5 hours behind Greenwich Mean Time.
What is the difference between GMT and BST?
GMT (Greenwich Mean Time) is the UK's standard winter offset at UTC+0, observed from the last Sunday in October through the last Sunday in March. BST (British Summer Time) is the daylight saving offset at UTC+1, applied each summer when clocks advance one hour.
Is GMT the same as UTC?
GMT and UTC share exactly the same numerical offset — both represent UTC+00:00 — but they are fundamentally different in nature. UTC is an atomic-clock-based international time standard used as the global reference, while GMT is a geographic time zone legally observed by specific countries including the United Kingdom and Ireland during winter months.
Does Peru observe Daylight Saving Time?
Peru does not observe Daylight Saving Time and has not done so since 1994. PET remains fixed at UTC-05:00 throughout the entire year, with no seasonal clock changes affecting business hours, market schedules, or international coordination.
How does Peru Time (PET) align with the US?
PET (UTC-05:00) is identical to US Eastern Standard Time (EST) during the Northern Hemisphere winter — Lima and New York run on the exact same clock. When the US shifts to Eastern Daylight Time (EDT, UTC-04:00) in summer, PET falls one hour behind, but a full shared workday between Peru and the US East Coast remains entirely achievable without scheduling concessions on either side.