HST
Hawaii Standard Time
GMT -10
Tamuning
Guam
ChST
Time Difference
Zulu Time Zone is 10 hours ahead of Hawaii Standard Time and 10 hours behind ChST (Chamorro Standard Time)
2:30 am02:30 in Z is 4:30 pm16:30 in HST and is 12:30 pm12:30 in Tamuning, Guam
Z to HST call time
Best time for a conference call or a meeting is between 6pm-8pm in Z which corresponds to 8am-10am in HST
Z to Tamuning call time
Best time for a conference call or a meeting is between 8am-10am in Z which corresponds to 6pm-8pm in Tamuning
2:30 am02:30 Zulu Time Zone (Z). Offset UTC 0:00 hours
4:30 pm16:30 Hawaii Standard Time (HST). Offset UTC -10:00 hours
12:30 pm12:30 ChST (Chamorro Standard Time) (Tamuning, Guam). Offset UTC +10:00 hours
2:30 am02:30 Z / 4:30 pm16:30 HST / 12:30 pm12:30 Tamuning, Guam
| Z | HST | Tamuning, Guam |
|---|---|---|
| 12am (midnight) | 2pm | 10am |
| 1am | 3pm | 11am |
| 2am | 4pm | 12pm (noon) |
| 3am | 5pm | 1pm |
| 4am | 6pm | 2pm |
| 5am | 7pm | 3pm |
| 6am | 8pm | 4pm |
| 7am | 9pm | 5pm |
| 8am | 10pm | 6pm |
| 9am | 11pm | 7pm |
| 10am | 12am (midnight) | 8pm |
| 11am | 1am | 9pm |
| 12pm (noon) | 2am | 10pm |
| 1pm | 3am | 11pm |
| 2pm | 4am | 12am (midnight) |
| 3pm | 5am | 1am |
| 4pm | 6am | 2am |
| 5pm | 7am | 3am |
| 6pm | 8am | 4am |
| 7pm | 9am | 5am |
| 8pm | 10am | 6am |
| 9pm | 11am | 7am |
| 10pm | 12pm (noon) | 8am |
| 11pm | 1pm | 9am |
| 0:00 | 14:00 | 10:00 |
| 1:00 | 15:00 | 11:00 |
| 2:00 | 16:00 | 12:00 |
| 3:00 | 17:00 | 13:00 |
| 4:00 | 18:00 | 14:00 |
| 5:00 | 19:00 | 15:00 |
| 6:00 | 20:00 | 16:00 |
| 7:00 | 21:00 | 17:00 |
| 8:00 | 22:00 | 18:00 |
| 9:00 | 23:00 | 19:00 |
| 10:00 | 0:00 | 20:00 |
| 11:00 | 1:00 | 21:00 |
| 12:00 | 2:00 | 22:00 |
| 13:00 | 3:00 | 23:00 |
| 14:00 | 4:00 | 0:00 |
| 15:00 | 5:00 | 1:00 |
| 16:00 | 6:00 | 2:00 |
| 17:00 | 7:00 | 3:00 |
| 18:00 | 8:00 | 4:00 |
| 19:00 | 9:00 | 5:00 |
| 20:00 | 10:00 | 6:00 |
| 21:00 | 11:00 | 7:00 |
| 22:00 | 12:00 | 8:00 |
| 23:00 | 13:00 | 9:00 |
Zulu Time Zone
Offset: Z is 0 hours ahead Greenwich Mean Time (GMT) and is used in Military
Greenwich Mean Time (GMT) originally referred to the mean solar time at the Royal Observatory in Greenwich, London. It is now often used to refer to Coordinated Universal Time (UTC) when this is viewed as a time zone, and in casual use for the most parts it is the same. In military GMT is known as Zulu time.Greenwich Mean Time was the same as Universal Time (UT), until the introduction of UTC in 1972 a standard astronomical concept used in many technical fields.
Z representations, usage and related time zones
W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
- Z - is the zone designator for the zero UTC/GMT offset, also known as 'Zulu' time
- +00 - basic short
- +0000 - basic
- +00:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
- +0000 - sign character (+) followed by a four digit time providing hours (00) and minutes (00) of the offset. Indicates zero hour and zero minutes time differences of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
- Zulu - Military abbreviation for Z
- Z - short form of 'Zulu'
Time zones with the GMT +0 offset:
- EGST - Eastern Greenland Summer Time
- GMT - Greenwich Mean Time
- WET - Western European Time
- AZOST - Azores Summer Time
- UTC - Universal Time Coordinated
- WT - Western Sahara Standard Time
- Z - Zulu Time Zone
Hawaii Standard Time
Offset: HST is 10 hours behind Greenwich Mean Time (GMT) and is used in Pacific
Countries: It is used in following countries: United States
Principal Cities: The largest city in the HST timezone is Honolulu from USA with population about 371,657 people. Other major cities in the area are Pearl City, Hilo, Kailua, Waipahu
Daylight Saving: Hawaii Standard Time (HST) is not adjusted for daylight saving therefore HST 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, Hawaii Standard Time remains the same
HST 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 west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
- Whiskey - Military abbreviation for HST
- W - short form of 'Whiskey'
IANA/Olson: Reflects HST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
- America/Adak
- America/Atka
- HST
- Pacific/Honolulu
- Pacific/Johnston
- US/Aleutian
- US/Hawaii
Time zones with the GMT -10 offset:
- HAST - Hawaii-Aleutian Standard Time
- CKT - Cook Island Time
- HST - Hawaii Standard Time
- TAHT - Tahiti Time
- W - Whiskey Time Zone
Tamuning Information
Time Zone
Abbreviation / Name
ChST - Chamorro Standard Time
UTC / GMT Offset
+10:00 hours during Chamorro Standard Time, currently in use.
Tamuning Facts
Country
Guam
Alternative Names
Tamuneng, Tamuning, ta mu ning, tamunin, tamuning, tamwnyng, tamwnyng gwam, Тамунинг, تامونینگ, تامونینگ، گوام, タムニン, 塔穆宁, 타무닝
Population
19,685
Currency
Dollar (USD)
Geographic Coordinates
13° 29' N Latitude / 144° 46' E Longitude
