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Tehran to Lima Time

IRST to PET Converter — 9 AM IRST is 12:30 AM PET

Tehran is 8 hours and 30 minutes ahead of Lima. Convert any time between Tehran (IRST/IRDT) and Lima (PET) instantly.

Tehran

Iran

IRST/IRDT
UTC+3:30 · IRST/IRDT

Lima

Peru

PET
UTC-5 · PET
Tehran is 8 hours and 30 minutes ahead of Lima.

Add Time Zones to Compare

Tehran(UTC+3:30)
Lima(UTC-5)

Time Zone Comparison

Tehran
3:30 PM
Iran · IRST/IRDT
12:00 PM
12amNight
1amNight
2amNight
3amNight
4amNight
5amNight
6amNight
7amNight
8amNight
9amWorking hours
10amWorking hours
11amWorking hours
12pmWorking hours
1pmWorking hours
2pmWorking hours
3pmWorking hours
4pmWorking hours
5pmEvening
6pmEvening
7pmEvening
8pmEvening
9pmNight
10pmNight
11pmNight
Lima
7:00 AM
Peru · PET
3:30 AM
3pmWorking hours
4pmWorking hours
5pmEvening
6pmEvening
7pmEvening
8pmEvening
9pmNight
10pmNight
11pmNight
12amNight
1amNight
2amNight
3amNight
4amNight
5amNight
6amNight
7amNight
8amNight
9amWorking hours
10amWorking hours
11amWorking hours
12pmWorking hours
1pmWorking hours
2pmWorking hours
Working
Evening
Night
Now
Selected Time
Minutes:
Tehran12:00 PM
Lima3:30 AM

Tehran to Lima Time Conversion Table

Tehran (IRST)Lima (PET)
12:00 AM3:30 PM
2:00 AM5:30 PM
4:00 AM7:30 PM
6:00 AM9:30 PM
8:00 AM11:30 PM
10:00 AM1:30 AM
12:00 PM3:30 AM
2:00 PM5:30 AM
4:00 PM7:30 AM
6:00 PM9:30 AM
8:00 PM11:30 AM
10:00 PM1:30 PM
Working hours (9 AM - 5 PM)
Evening (5 PM - 9 PM)
Night

Tehran & Lima — Business & Scheduling Guide

Tehran (Iran) is an important regional economy, with key industries in diverse sectors including services and trade. Lima (Peru) is an important regional economy, known for diverse sectors including services and trade. With a 8.5-hour time difference, professionals frequently schedule cross-border calls between these two cities for international trade, remote team collaboration, and client meetings.

Scheduling Meetings Between Tehran and Lima

With Lima 8.5 hours behind Tehran, there is minimal overlap in standard business hours. Most teams alternate meeting times to share the burden of early-morning or late-evening calls fairly. Business hours typically follow a 9 AM–5 PM schedule. Business hours typically follow a 9 AM–5 PM schedule. Consider recording meetings for those who can't attend live, and use shared documents for async collaboration.

Daylight Saving Time Considerations

Tehran observes Daylight Saving Time (IRST/IRDT), but Lima does not — it stays on PET year-round. This means the time difference between Tehran and Lima changes by 1 hour when Tehran switches clocks. During Iran's summer, the gap is 7.5–9.5 hours instead of the standard 8.5 hours. Mark DST transition dates on your calendar to avoid missed meetings.

IRST to PET — Quick Reference

IRST (IRST/IRDT) stands for the timezone used in Tehran, Iran (UTC+3:30). PET (PET) is the timezone used in Lima, Peru (UTC-5). Tehran is 8 hours and 30 minutes ahead of Lima.

To convert IRST to PET, subtract 8.5 hours from IRST time. For example, IRST 9:00 AM = PET 12:30 AM.

Key Facts

  • Time difference: Tehran (UTC+3:30) is 8 hours and 30 minutes ahead of Lima (UTC-5).
  • Daylight Saving Time: Tehran observes DST (IRST/IRDT). Lima does not observe DST (PET).
  • Regions: Tehran is located in Iran and uses the IRST/IRDT time zone. Lima is located in Peru and uses the PET time zone.
  • Best time to call: There are no overlapping standard work hours (9 AM - 5 PM) between these two cities.

Frequently Asked Questions

What is the time difference between Tehran and Lima?

Tehran is 8 hours and 30 minutes ahead of Lima.

What time is it in Lima when it's 9 AM in Tehran?

When it's 9:00 AM in Tehran, it is 12:30 AM in Lima.

What time is 9 PM IRST in PET?

9 PM IRST (Tehran time) is 12:30 PM PET (Lima time). This is a common time people check when scheduling evening calls across these two time zones.

When is the best time to schedule a meeting between Tehran and Lima?

There are no overlapping standard work hours (9 AM - 5 PM) between these two cities.

How do I convert IRST to PET?

IRST (IRST/IRDT) is the timezone for Tehran, Iran (UTC+3:30). PET (PET) is the timezone for Lima, Peru (UTC-5). Tehran is 8 hours and 30 minutes ahead of Lima. Quick examples: 9 AM IRST = 12:30 AM PET, 12 PM IRST = 3:30 AM PET, 3 PM IRST = 6:30 AM PET, 6 PM IRST = 9:30 AM PET.

Is Tehran ahead of or behind Lima?

Tehran is 8 hours 30 minutes ahead of Lima. When it's noon in Tehran, it's 3:30 AM in Lima.

Does Tehran or Lima change clocks for Daylight Saving Time?

Yes, Tehran observes DST and switches between IRST/IRDT. Lima does not observe DST — it stays on PET year-round. Because only one city observes DST, the time difference shifts by 1 hour during transition periods (typically March/April and October/November).

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