GST to PET
-9hGST
GSTSOURCEPET
PETGreen rows indicate typical business hours (9 AM - 5 PM)
GST and PET on the World Map
The map below highlights the GST (Gulf Standard Time) and PET (Peru Time) timezone regions across the globe.
GST – Gulf Standard Time
UTC+04:00Gulf Standard Time (GST) is used in the UAE, Oman, and other Gulf states, 4 hours ahead of UTC.
- •Dubai uses GST year-round with no daylight saving time.
- •GST is 9 hours ahead of EST and 4 hours ahead of GMT.
- •The Dubai Financial Market (DFM) operates on GST.
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.
Comparing Time Zones: GST and PET
GST runs on Gulf Standard Time (GST) at UTC+04:00. PET runs on Peru Time (PET) at UTC-05:00. That puts GST 9 hours behind PET — a difference of -9h at the current offsets.
In practice, when it is 9:00 AM in GST it is 12:00 AM in PET. Midnight in GST is 3:00 PM in PET. Neither zone observes daylight saving time, so the offset between them stays constant all year.
GST to PET time conversion table
| GST (GST) | PET (PET) | Day |
|---|---|---|
| 12:00 AM | 3:00 PM | previous day |
| 6:00 AM | 9:00 PM | previous day |
| 7:00 AM | 10:00 PM | previous day |
| 8:00 AM | 11:00 PM | previous day |
| 9:00 AM | 12:00 AM | same day |
| 12:00 PM | 3:00 AM | same day |
| 3:00 PM | 6:00 AM | same day |
| 5:00 PM | 8:00 AM | same day |
| 6:00 PM | 9:00 AM | same day |
| 9:00 PM | 12:00 PM | same day |
Why people convert GST to PET time
- Scheduling a call from GST to PET: a 10:00 AM start in GST lands at 1:00 AM in PET, so you can confirm the slot without doing the arithmetic yourself.
- Handling a -9h gap: GST and PET have no overlap inside a normal 9-to-5 day, so real-time meetings need an early-morning or late-evening slot on one side. 9:00 AM in PET is 12:00 AM in GST.
- Coordinating a GST-based team with PET contacts: quoting times in the other side's local clock — not your own — removes the single biggest source of missed meetings.
- Always state the zone abbreviation, not just the hour. "3:00 PM GST" is unambiguous; "3 PM" across a -9h gap is not.
- With a -9h gap there is no shared 9-to-5 window, so alternate the early start: one week GST takes the early slot, the next week PET does.
About GST (Gulf Standard Time)
Gulf Standard Time (GST) is the time zone used in the United Arab Emirates, Oman, and other Gulf states. GST does not observe daylight saving time. Dubai and Abu Dhabi, major international business and tourism hubs, operate on GST.
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 GST and PET
With a -9h offset there is no overlap inside a normal 9 AM – 5 PM day. PET opens at 9:00 AM PET, which is 12:00 AM in GST, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
GST and PET have no shared working hours because of the -9h gap. Teams need to alternate early starts or rely on asynchronous handovers.
GST is 9 hours behind PET (GST UTC+04:00 → PET UTC-05:00). There is no shared 9-to-5 window, so plan around an early or late slot. Remember to re-check around daylight-saving transitions.
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 GST and PET?
GST (GST, UTC+04:00) is 9 hours behind PET (PET, UTC-05:00). The gap is currently -9h.
How do I convert GST time to PET time?
Add -9h to GST local time. For example, 9:00 AM in GST is 12:00 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 -9h offset from GST.
What is the best time to call PET from GST?
There is no shared working-hours window because of the -9h gap. The closest option is 1:00 PM in GST, which is 4:00 AM in PET.
Which is behind, GST or PET?
GST is 9 hours behind PET. When it is 12:00 PM in GST it is 3:00 AM in PET.
Does daylight saving time affect the GST–PET difference?
Neither zone observes daylight saving time, so the -9h offset between GST and PET is fixed all year.
Which other cities share GST's time zone?
GST also covers Dubai, Abu Dhabi, Muscat, Baku, Tbilisi.
Which countries use GST, GST's zone?
GST is used in UAE, Oman, Georgia, Azerbaijan, Mauritius.
Is there a day difference between GST and PET?
Not normally. The -9h gap only pushes the date over the previous day.
What is the time difference between GST and PET?
PET is -9h from GST.
What timezone is GST in?
GST operates on its local timezone.
What timezone is PET in?
PET operates on its local timezone.
Which countries use GST (Gulf Standard Time)?
GST is used in UAE, Oman, Georgia, Azerbaijan, Mauritius.
Does GST observe daylight saving time?
No, GST does not observe daylight saving time and remains at UTC+04:00 year-round.
What are some interesting facts about GST?
Dubai uses GST year-round with no daylight saving time. GST is 9 hours ahead of EST and 4 hours ahead of GMT.
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 GST, what time is it in PET?
When it is 12:00 AM (midnight) in GST (GST), it is -9h later in PET (PET).
Related Developer Tools
Explore more tools that work great with timezone conversions for international teams:
Related Timezone Conversions
More GST time conversions
- gst to dubai
- gst to uae
- gst to new york
- gst to london
- gst to tokyo
- gst to singapore
- gst to sydney
- gst to los angeles
- gst to paris
- gst to delhi
- gst to mumbai
- gst to berlin
- gst to hong kong
- gst to toronto
- gst to kathmandu
- new york to gst
- london to gst
- dubai to gst
- tokyo to gst
- singapore to gst
- sydney to gst
- los angeles to gst
- paris to gst
- delhi to gst
- mumbai to gst
- berlin to gst
- hong kong to gst
- toronto to gst
- kathmandu to gst
See every conversion from GST →·See every conversion from PET →