IRST to AST Ast
IRST
Iran Standard Time
GMT +3:30
AST
Armenia Standard Time
GMT +4
Time Difference
Iran Standard Time is 0 hours and 30 minutes behind Armenia Standard Time
5:00 am05:00 in IRST is 5:30 am05:30 in AST
IRST to AST call time
Best time for a conference call or a meeting is between 8am-5:30pm in IRST which corresponds to 8:30am-6pm in AST
5:00 am05:00 Iran Standard Time (IRST). Offset UTC +3:30 hours
5:30 am05:30 Armenia Standard Time (AST). Offset UTC +4:00 hours
5:00 am05:00 IRST / 5:30 am05:30 AST
| IRST | AST |
|---|---|
| 12am (midnight) | 12:30 am |
| 1am | 1:30 am |
| 2am | 2:30 am |
| 3am | 3:30 am |
| 4am | 4:30 am |
| 5am | 5:30 am |
| 6am | 6:30 am |
| 7am | 7:30 am |
| 8am | 8:30 am |
| 9am | 9:30 am |
| 10am | 10:30 am |
| 11am | 11:30 am |
| 12pm (noon) | 12:30 pm |
| 1pm | 1:30 pm |
| 2pm | 2:30 pm |
| 3pm | 3:30 pm |
| 4pm | 4:30 pm |
| 5pm | 5:30 pm |
| 6pm | 6:30 pm |
| 7pm | 7:30 pm |
| 8pm | 8:30 pm |
| 9pm | 9:30 pm |
| 10pm | 10:30 pm |
| 11pm | 11:30 pm |
| 0:00 | 0:30 |
| 1:00 | 1:30 |
| 2:00 | 2:30 |
| 3:00 | 3:30 |
| 4:00 | 4:30 |
| 5:00 | 5:30 |
| 6:00 | 6:30 |
| 7:00 | 7:30 |
| 8:00 | 8:30 |
| 9:00 | 9:30 |
| 10:00 | 10:30 |
| 11:00 | 11:30 |
| 12:00 | 12:30 |
| 13:00 | 13:30 |
| 14:00 | 14:30 |
| 15:00 | 15:30 |
| 16:00 | 16:30 |
| 17:00 | 17:30 |
| 18:00 | 18:30 |
| 19:00 | 19:30 |
| 20:00 | 20:30 |
| 21:00 | 21:30 |
| 22:00 | 22:30 |
| 23:00 | 23:30 |
Iran Standard Time
Offset: IRST is 3 hours and 30 minutes ahead Greenwich Mean Time (GMT) and is used in Asia
IRST representations, usage and related time zones
W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
- +0330 - basic
- +03:30 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
- +0330 - sign character (+) followed by a four digit time providing hours (03) and minutes (30) of the offset. Indicates three hour and thirty minutes time differences to the east of the zero meridian.
Armenia Standard Time
Offset: AST is 4 hours ahead Greenwich Mean Time (GMT) and is used in Asia
AST representations, usage and related time zones
W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
- +04 - basic short
- +0400 - basic
- +04:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
- +0400 - sign character (+) followed by a four digit time providing hours (04) and minutes (00) of the offset. Indicates four hour and zero minutes time differences to the east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
- Delta - Military abbreviation for AST
- D - short form of 'Delta'
AST Abbreviation: Several time zones share AST abbreviation and it could refer to these time zones
- Atlantic Standard Time - UTC -4
- Arabia Standard Time - UTC +3
- Argentina Standard Time - UTC -3
- Armenia Standard Time - UTC +4
- Azores Summer Time - UTC +0
- Apia Standard Time - UTC +13
Time zones with the GMT +4 offset:
- KUYT - Kuybyshev Time
- MSD - Moscow Daylight Time
- SAMT - Samara Time
- AMT - Armenia Time
- AZT - Azerbaijan Time
- D - Delta Time Zone
- GET - Georgia Standard Time
- GST - Gulf Standard Time
- MUT - Mauritius Time
- RET - Reunion Time
- SCT - Seychelles Time