IST (Iran Standard Time) is 7 hours and 30 minutes ahead of Eastern Daylight Time
4:00 am04:00 in Tehran, Iran is 8:30 pm20:30 in EDT
Tehran to EST call time
Best time for a conference call or a meeting is between 4:30pm-6:30pm in Tehran which corresponds to 8am-10am in EST
4:00 am04:00 IST (Iran Standard Time) (Tehran, Iran). Offset UTC +3:30 hours
8:30 pm20:30 Eastern Daylight Time (EDT). Offset UTC -4:00 hours
4:00 am04:00 Tehran, Iran / 8:30 pm20:30 EDT
|12am (midnight)||4:30 pm|
|12pm (noon)||4:30 am|
Eastern Standard Time
Offset: EST is 5 hours behind Greenwich Mean Time (GMT) and is used in Central America
Countries: It is used in following countries: Bahamas, Canada, Haiti, Jamaica, Cayman Islands, Mexico, Panama, Turks & Caicos Is, United States
Principal Cities: The largest city in the EST timezone is New York City from USA with population about 8.175 million people. Other major cities in the area are Toronto, Montreal, Brooklyn, Borough of Queens
Daylight Saving: This is a standard timezone, however during summer some places adjust time for one hour forward for daylight saving and observe Eastern Daylight Time (EDT).
End: EST ends annually on the same date and time. and clocks were set one hour forward on Sunday, 14 March 2021, at 2:00 (2:00 am) local time.
Start: EST starts annually on the same date and time. and clocks are set one hour back on Sunday, 07 November 2021, at 2:00 (2:00 am) local time.
EST representations, usage and related time zones
- -05 - basic short
- -0500 - basic
- -05:00 - extended
- -0500 - sign character (-) followed by a four digit time providing hours (05) and minutes (00) of the offset. Indicates five hour and zero minutes time differences to the west of the zero meridian.
- Romeo - Military abbreviation for EST
- R - short form of 'Romeo'
- CDT - Central Daylight Time
- EST - Eastern Standard Time
- ET - Eastern Time
- COT - Colombia Time
- CST - Cuba Standard Time
- EASST - Easter Island Summer Time
- ECT - Ecuador Time
- PET - Peru Time
- R - Romeo Time Zone
- ET - Ecuador Time
- PST - Peru Standard Time
- CST - Colombia Standard Time
- AST - Acre Standard Time
- -05 -