Los Angeles to Tehran Time

Los Angeles (United States) is a global financial and tech hub, with key industries in technology, finance, healthcare, and entertainment. Tehran (Iran) is an important regional economy, known for diverse sectors including services and trade. With a 11.5-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 Los Angeles and Tehran

With Tehran 11.5 hours ahead of Los Angeles, 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. US business hours typically run 9 AM–5 PM, with a culture that values punctuality and efficiency. 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

Both Los Angeles and Tehran observe Daylight Saving Time. Los Angeles uses PST/PDT (switching between standard and daylight time), while Tehran uses IRST/IRDT. If their DST transitions happen on different dates — which is common, as the US, EU, and other regions change clocks on different weekends — the effective time difference between the two cities can shift by 1 hour for several weeks. Always double-check the actual offset during March–April and October–November.

PST (PST/PDT) stands for the timezone used in Los Angeles, United States (UTC-8). IRST (IRST/IRDT) is the timezone used in Tehran, Iran (UTC+3:30). Los Angeles is 11 hours and 30 minutes behind Tehran.

To convert PST to IRST, add 11.5 hours to PST time. For example, PST 9:00 AM = IRST 8:30 PM.