Iran
IST
ChST
Chamorro Standard Time
GMT +10

Time Difference

IST (Iran Standard Time) is 6 hours and 30 minutes behind Chamorro Standard Time
10:30 pm22:30 in Tehran, Iran is 5:00 am05:00 in ChST

Tehran to ChST call time
Best time for a conference call or a meeting is between 8am-11:30am in Tehran which corresponds to 2:30pm-6pm in ChST

10:30 pm22:30 IST (Iran Standard Time) (Tehran, Iran). Offset UTC +3:30 hours
5:00 am05:00 Chamorro Standard Time (ChST). Offset UTC +10:00 hours

10:30 pm22:30 Tehran, Iran / 5:00 am05:00 ChST

Tehran, Iran ChST
12am (midnight) 6:30 am
1am 7:30 am
2am 8:30 am
3am 9:30 am
4am 10:30 am
5am 11:30 am
6am 12:30 pm
7am 1:30 pm
8am 2:30 pm
9am 3:30 pm
10am 4:30 pm
11am 5:30 pm
12pm (noon) 6:30 pm
1pm 7:30 pm
2pm 8:30 pm
3pm 9:30 pm
4pm 10:30 pm
5pm 11:30 pm
6pm 12:30 am
7pm 1:30 am
8pm 2:30 am
9pm 3:30 am
10pm 4:30 am
11pm 5:30 am
0:00 6:30
1:00 7:30
2:00 8:30
3:00 9:30
4:00 10:30
5:00 11:30
6:00 12:30
7:00 13:30
8:00 14:30
9:00 15:30
10:00 16:30
11:00 17:30
12:00 18:30
13:00 19:30
14:00 20:30
15:00 21:30
16:00 22:30
17:00 23:30
18:00 0:30
19:00 1:30
20:00 2:30
21:00 3:30
22:00 4:30
23:00 5:30

Tehran Information

Time Zone

Abbreviation / Name
IST - Iran Standard Time
IRDT - Iran Daylight Time
UTC / GMT Offset
+3:30 hours during Iran Standard Time, currently in use.
+4:30 hours during Iran Daylight Time.
Daylight Saving Time Change
+1:00 hour - DST is NOT in use
Daylight Saving Time Starts
Also called Spring Forward or Summer Time.
Daylight Saving Time Ends
Also called Fall Back or switch to Winter Time.

Tehran Facts

Country
Iran
Alternative Names
THR, Taekhran, Tahran, Techerane, Teera, Teerao, Teerã, Teerão, Tegeran, Teheran, Teherana, Teheranas, Teherano, Teherán, Teherāna, Tehran, Tehrano, Tekheran, Téhéran, de hei lan, teharan, teharana, tehelan, teheran, tehran, teirani, thran, thrn, thrwn, tihiran, tihran, Τεχεράνη, Тæхран, Тегеран, Техеран, Теҳрон, Թեհրան, טהראן, טהרן, تهران, تهرون, تِهران, تِهِرَن, تہران, طهران, ܛܗܪܐܢ, तेहरान, তেহরান, தெஹ்ரான், เตหะราน, ཏེ་ཧི་རན​།, თეირანი, ቴህራን, テヘラン, 德黑兰, 테헤란
Population
7,153,309
Currency
Rial (IRR)
Geographic Coordinates
35° 41' N Latitude / 51° 25' E Longitude
International Dialing Code
+98

Chamorro Standard Time

Offset: ChST is 10 hours ahead Greenwich Mean Time (GMT) and is used in Pacific

Countries: It is used in following countries: Guam, Northern Mariana Islands

Principal Cities: The largest city in the ChST timezone is Saipan from Northern Mariana Islands with population about 48,220 people. Other major cities in the area are Dededo Village, Yigo Village, Tamuning Tumon Harmon Village, Mangilao Village

Daylight Saving: Chamorro Standard Time (ChST) is not adjusted for daylight saving therefore ChST remains the same through out the year. This means, unlike some time zones where the clock is set forward by one hour every summer and backward by one hour during winter to adjust for daylight saving, Chamorro Standard Time remains the same

ChST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +10 - basic short
  • +1000 - basic
  • +10:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +1000 - sign character (+) followed by a four digit time providing hours (10) and minutes (00) of the offset. Indicates ten 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
  • Kilo - Military abbreviation for ChST
  • K - short form of 'Kilo'
IANA/Olson: Reflects ChST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Pacific/Guam
  • Pacific/Saipan
Time zones with the GMT +10 offset:
  • AEST - Australian Eastern Standard Time
  • CHUT - Chuuk Time
  • ChST - Chamorro Standard Time
  • K - Kilo Time Zone
  • KDT - Korea Daylight Time
  • PGT - Papua New Guinea Time
  • VLAT - Vladivostok Time
  • YAKST - Yakutsk Summer Time
  • YAPT - Yap Time