CST to GMT to Sydney, Australia to Dublin, Ireland to Berlin, Germany
Time Difference
Central Standard Time is 6 hours behind Greenwich Mean Time and 17 hours behind AEDT (Australian Eastern Daylight Time) and 6 hours behind GMT (Greenwich Mean Time) and 7 hours behind CET (Central European Time)
7:30 pm19:30 in CST is 1:30 am01:30 in GMT and is 12:30 pm12:30 in Sydney, Australia and is 1:30 am01:30 in Dublin, Ireland and is 2:30 am02:30 in Berlin, Germany
CST to GMT call time
Best time for a conference call or a meeting is between 8am-12pm in CST which corresponds to 2pm-6pm in GMT
CST to Sydney call time
Best time for a conference call or a meeting is between 4:30am-6:30am in CST which corresponds to 9:30pm-11:30pm in Sydney
CST to Dublin call time
Best time for a conference call or a meeting is between 8am-12pm in CST which corresponds to 2pm-6pm in Dublin
CST to Berlin call time
Best time for a conference call or a meeting is between 8am-11am in CST which corresponds to 3pm-6pm in Berlin
7:30 pm19:30 Central Standard Time (CST). Offset UTC -6:00 hours
1:30 am01:30 Greenwich Mean Time (GMT). Offset UTC 0:00 hours
12:30 pm12:30 AEDT (Australian Eastern Daylight Time) (Sydney, Australia). Offset UTC +11:00 hours
1:30 am01:30 GMT (Greenwich Mean Time) (Dublin, Ireland). Offset UTC 0:00 hours
2:30 am02:30 CET (Central European Time) (Berlin, Germany). Offset UTC +1:00 hour
7:30 pm19:30 CST / 1:30 am01:30 GMT / 12:30 pm12:30 Sydney, Australia / 1:30 am01:30 Dublin, Ireland / 2:30 am02:30 Berlin, Germany
| CST | GMT | Sydney, Australia | Dublin, Ireland | Berlin, Germany |
|---|---|---|---|---|
| 12am (midnight) | 6am | 5pm | 6am | 7am |
| 1am | 7am | 6pm | 7am | 8am |
| 2am | 8am | 7pm | 8am | 9am |
| 3am | 9am | 8pm | 9am | 10am |
| 4am | 10am | 9pm | 10am | 11am |
| 5am | 11am | 10pm | 11am | 12pm (noon) |
| 6am | 12pm (noon) | 11pm | 12pm (noon) | 1pm |
| 7am | 1pm | 12am (midnight) | 1pm | 2pm |
| 8am | 2pm | 1am | 2pm | 3pm |
| 9am | 3pm | 2am | 3pm | 4pm |
| 10am | 4pm | 3am | 4pm | 5pm |
| 11am | 5pm | 4am | 5pm | 6pm |
| 12pm (noon) | 6pm | 5am | 6pm | 7pm |
| 1pm | 7pm | 6am | 7pm | 8pm |
| 2pm | 8pm | 7am | 8pm | 9pm |
| 3pm | 9pm | 8am | 9pm | 10pm |
| 4pm | 10pm | 9am | 10pm | 11pm |
| 5pm | 11pm | 10am | 11pm | 12am (midnight) |
| 6pm | 12am (midnight) | 11am | 12am (midnight) | 1am |
| 7pm | 1am | 12pm (noon) | 1am | 2am |
| 8pm | 2am | 1pm | 2am | 3am |
| 9pm | 3am | 2pm | 3am | 4am |
| 10pm | 4am | 3pm | 4am | 5am |
| 11pm | 5am | 4pm | 5am | 6am |
| 0:00 | 6:00 | 17:00 | 6:00 | 7:00 |
| 1:00 | 7:00 | 18:00 | 7:00 | 8:00 |
| 2:00 | 8:00 | 19:00 | 8:00 | 9:00 |
| 3:00 | 9:00 | 20:00 | 9:00 | 10:00 |
| 4:00 | 10:00 | 21:00 | 10:00 | 11:00 |
| 5:00 | 11:00 | 22:00 | 11:00 | 12:00 |
| 6:00 | 12:00 | 23:00 | 12:00 | 13:00 |
| 7:00 | 13:00 | 0:00 | 13:00 | 14:00 |
| 8:00 | 14:00 | 1:00 | 14:00 | 15:00 |
| 9:00 | 15:00 | 2:00 | 15:00 | 16:00 |
| 10:00 | 16:00 | 3:00 | 16:00 | 17:00 |
| 11:00 | 17:00 | 4:00 | 17:00 | 18:00 |
| 12:00 | 18:00 | 5:00 | 18:00 | 19:00 |
| 13:00 | 19:00 | 6:00 | 19:00 | 20:00 |
| 14:00 | 20:00 | 7:00 | 20:00 | 21:00 |
| 15:00 | 21:00 | 8:00 | 21:00 | 22:00 |
| 16:00 | 22:00 | 9:00 | 22:00 | 23:00 |
| 17:00 | 23:00 | 10:00 | 23:00 | 0:00 |
| 18:00 | 0:00 | 11:00 | 0:00 | 1:00 |
| 19:00 | 1:00 | 12:00 | 1:00 | 2:00 |
| 20:00 | 2:00 | 13:00 | 2:00 | 3:00 |
| 21:00 | 3:00 | 14:00 | 3:00 | 4:00 |
| 22:00 | 4:00 | 15:00 | 4:00 | 5:00 |
| 23:00 | 5:00 | 16:00 | 5:00 | 6:00 |
Central Standard Time
Offset: CST is 6 hours behind Greenwich Mean Time (GMT) and is used in North America
Countries: It is used in following countries: Belize, Canada, Costa Rica, Guatemala, Honduras, Mexico, Nicaragua, El Salvador, United States
Principal Cities: The largest city in the CST timezone is Mexico City from Mexico with population about 12.294 million people. Other major cities in the area are Chicago, Houston, Iztapalapa, Ecatepec
French: HNC - Heure Normale du Centre
Spanish: CT - Tiempo Central Estándar, CT - Zona Centro
Daylight Saving: This is a standard timezone, however during summer some places switch clocks for one hour forward when daylight saving comes into effect and observe Central Daylight Time (CDT).
Start: Central Standard Time (CST) started on Sunday, November 2, 2025 at 2:00 am local time and clocks were set one hour back to Sunday, November 2, 2025, 1:00 am. Standard time starts annually the on first Sunday of November.
End: Central Standard Time (CST) ends on Sunday, March 8, 2026 at 2:00 am local time and clocks are set one hour forward to Sunday, March 8, 2026, 3:00 am local daylight time instead. Standard time starts annually the on second Sunday of March.
CST representations, usage and related time zones
- -06 - basic short
- -0600 - basic
- -06:00 - extended
- -0600 - sign character (-) followed by a four digit time providing hours (06) and minutes (00) of the offset. Indicates six hour and zero minutes time differences to the west of the zero meridian.
- Sierra - Military abbreviation for CST
- S - short form of 'Sierra'
- America/Bahia_Banderas
- America/Belize
- America/Chicago
- America/Chihuahua
- America/Costa_Rica
- America/El_Salvador
- America/Guatemala
- America/Indiana/Knox
- America/Indiana/Tell_City
- America/Knox_IN
- America/Managua
- America/Matamoros
- America/Menominee
- America/Merida
- America/Mexico_City
- America/Monterrey
- America/North_Dakota/Beulah
- America/North_Dakota/Center
- America/North_Dakota/New_Salem
- America/Ojinaga
- America/Rainy_River
- America/Rankin_Inlet
- America/Regina
- America/Resolute
- America/Swift_Current
- America/Tegucigalpa
- America/Winnipeg
- CST6CDT
- Canada/Central
- Canada/Saskatchewan
- Mexico/General
- US/Central
- US/Indiana-Starke
- Central Standard Time - UTC -6
- China Standard Time - UTC +8
- Cuba Standard Time - UTC -5
- Colombia Standard Time - UTC -5
- CST - Central Standard Time
- CT - Central Time
- MDT - Mountain Daylight Time
- EAST - Easter Island Standard Time
- GALT - Galapagos Time
- S - Sierra Time Zone
Greenwich Mean Time
Offset: GMT is 0 hours ahead Greenwich Mean Time (GMT) and is used in Europe
Countries: It is used in following countries: Burkina Faso, Côte d'Ivoire, Britain (UK), Guernsey, Ghana, Greenland, Gambia, Guinea, Guinea-Bissau, Ireland, Isle of Man, Iceland, Jersey, Liberia, Mali, Mauritania, St Helena, Sierra Leone, Senegal, Sao Tome & Principe, Togo
Principal Cities: The largest city in the GMT timezone is London from United Kingdom with population about 7.557 million people. Other major cities in the area are Abidjan, Dakar, Grand Dakar, Accra
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.
GMT representations, usage and related time zones
- Z - is the zone designator for the zero UTC/GMT offset, also known as 'Zulu' time
- +00 - basic short
- +0000 - basic
- +00:00 - extended
- +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.
- Zulu - Military abbreviation for GMT
- Z - short form of 'Zulu'
- Africa/Abidjan
- Africa/Accra
- Africa/Bamako
- Africa/Banjul
- Africa/Bissau
- Africa/Conakry
- Africa/Dakar
- Africa/Freetown
- Africa/Lome
- Africa/Monrovia
- Africa/Nouakchott
- Africa/Ouagadougou
- Africa/Sao_Tome
- Africa/Timbuktu
- America/Danmarkshavn
- Atlantic/Reykjavik
- Atlantic/St_Helena
- Eire
- Etc/GMT
- Etc/GMT+0
- Etc/GMT-0
- Etc/GMT0
- Etc/Greenwich
- Europe/Belfast
- Europe/Dublin
- Europe/Guernsey
- Europe/Isle_of_Man
- Europe/Jersey
- Europe/London
- GB
- GB-Eire
- GMT
- GMT+0
- GMT-0
- GMT0
- Greenwich
- Iceland
- Greenwich Mean Time - UTC +0
- GMT+03:00 - UTC +3
- GMT+05:00 - UTC +5
- GMT - UTC +1
- GMT-02:00 - UTC -2
- GMT+11:00 - UTC +11
- 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
Sydney Information
Time Zone
Sydney Facts
Dublin Information
Time Zone
IST - Irish Standard Time
+1:00 hour during Irish Standard Time.
Sunday, March 30, 2025 at 1:00 am local time. DST starts annually the on last Sunday of March. Clocks are turned forward 1 hour to Sunday, March 30, 2025, 2:00 am local daylight time instead. Also called Spring Forward or Summer Time.
Sunday, October 26, 2025 at 2:00 am local time. DST ends annually the on last Sunday of October. Clocks are turned backward 1 hour to Sunday, October 26, 2025, 1:00 am local standard time instead. Also called Fall Back or switch to Winter Time.
Dublin Facts
Berlin Information
Time Zone
CEST - Central European Summer Time
+2:00 hours during Central European Summer Time.
Sunday, March 30, 2025 at 2:00 am local time. DST starts annually the on last Sunday of March. Clocks are turned forward 1 hour to Sunday, March 30, 2025, 3:00 am local daylight time instead. Also called Spring Forward or Summer Time.
Sunday, October 26, 2025 at 3:00 am local time. DST ends annually the on last Sunday of October. Clocks are turned backward 1 hour to Sunday, October 26, 2025, 2:00 am local standard time instead. Also called Fall Back or switch to Winter Time.