Updating current time…
UTC
12am
3am
6am
9am
12pm
3pm
6pm
9pm
IST
UTC+5:30
5h 30m ahead
12am
3am
6am
9am
12pm
3pm
6pm
9pm
AustraliaAEDT
UTC+11
11h ahead
12am
3am
6am
9am
12pm
3pm
6pm
9pm
SGT
UTC+8
8h ahead
12am
3am
6am
9am
12pm
3pm
6pm
9pm
EST
UTC−5
5h behind
12am
3am
6am
9am
12pm
3pm
6pm
9pm
NZDT
UTC+13
tomorrow (next day)
13h ahead
12am
3am
6am
9am
12pm
3pm
6pm
9pm
CST
UTC−6
6h behind
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Quick answers

Selected conversion

12:00 pm12:00 UTC (UTC+0), Nov 9, 2026 = 5:30 pm17:30 IST (UTC+5:30), Nov 9, 2026 = 11:00 pm23:00 AEDT (UTC+11), Nov 9, 2026 = 8:00 pm20:00 SGT (UTC+8), Nov 9, 2026 = 7:00 am07:00 EST (UTC-5), Nov 9, 2026 = 1:00 am01:00 NZDT (UTC+13), Nov 10, 2026 = 6:00 am06:00 CST (UTC-6), Nov 9, 2026

UTC is 5 hours and 30 minutes behind IST. UTC is 11 hours behind Sydney. UTC is 8 hours behind SGT. UTC is 5 hours ahead of EST. UTC is 13 hours behind NZDT. UTC is 6 hours ahead of CST.

How the time difference changes

UTC to IST

UTC is 5 hours and 30 minutes behind IST year-round.

Working hours of 9:00 am to 6:00 pm in UTC correspond to 2:30 pm to 11:30 pm in IST.Working hours of 09:00 to 18:00 in UTC correspond to 14:30 to 23:30 in IST.

UTC to Sydney

Depending on seasonal clock changes, UTC is 10 hours behind Sydney or UTC is 11 hours behind Sydney.

Depending on seasonal clock changes, working hours of 9:00 am to 6:00 pm in UTC correspond to 7:00 pm to 4:00 am (next day) in Sydney or working hours of 9:00 am to 6:00 pm in UTC correspond to 8:00 pm to 5:00 am (next day) in Sydney.Depending on seasonal clock changes, working hours of 09:00 to 18:00 in UTC correspond to 19:00 to 04:00 (next day) in Sydney or working hours of 09:00 to 18:00 in UTC correspond to 20:00 to 05:00 (next day) in Sydney.

UTC to SGT

UTC is 8 hours behind SGT year-round.

Working hours of 9:00 am to 6:00 pm in UTC correspond to 5:00 pm to 2:00 am (next day) in SGT.Working hours of 09:00 to 18:00 in UTC correspond to 17:00 to 02:00 (next day) in SGT.

UTC to EST

For most of the year, UTC is 4 hours ahead of EDT. From Nov 1, 2026 to Mar 14, 2027, and from Nov 7, 2027 to Mar 12, 2028, UTC is 5 hours ahead of EST.

For most of the year, working hours of 9:00 am to 6:00 pm in UTC correspond to 5:00 am to 2:00 pm in EDT. At other times of the year, working hours of 9:00 am to 6:00 pm in UTC correspond to 4:00 am to 1:00 pm in EST.For most of the year, working hours of 09:00 to 18:00 in UTC correspond to 05:00 to 14:00 in EDT. At other times of the year, working hours of 09:00 to 18:00 in UTC correspond to 04:00 to 13:00 in EST.

UTC to NZDT

Depending on seasonal clock changes, UTC is 12 hours behind NZST or UTC is 13 hours behind NZDT.

Depending on seasonal clock changes, working hours of 9:00 am to 6:00 pm in UTC correspond to 9:00 pm to 6:00 am (next day) in NZST or working hours of 9:00 am to 6:00 pm in UTC correspond to 10:00 pm to 7:00 am (next day) in NZDT.Depending on seasonal clock changes, working hours of 09:00 to 18:00 in UTC correspond to 21:00 to 06:00 (next day) in NZST or working hours of 09:00 to 18:00 in UTC correspond to 22:00 to 07:00 (next day) in NZDT.

UTC to CST

For most of the year, UTC is 5 hours ahead of CDT. From Nov 1, 2026 to Mar 14, 2027, and from Nov 7, 2027 to Mar 12, 2028, UTC is 6 hours ahead of CST.

For most of the year, working hours of 9:00 am to 6:00 pm in UTC correspond to 4:00 am to 1:00 pm in CDT. At other times of the year, working hours of 9:00 am to 6:00 pm in UTC correspond to 3:00 am to 12:00 pm in CST.For most of the year, working hours of 09:00 to 18:00 in UTC correspond to 04:00 to 13:00 in CDT. At other times of the year, working hours of 09:00 to 18:00 in UTC correspond to 03:00 to 12:00 in CST.

Compare UTC time with IST, Sydney, SGT, EST, NZDT, and CST time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.

Time Difference

Coordinated Universal Time is 5 hours and 30 minutes behind India Standard Time. Coordinated Universal Time is 11 hours behind AEDT (Australian Eastern Daylight Time). Coordinated Universal Time is 8 hours behind Singapore Time. Coordinated Universal Time is 5 hours ahead of Eastern Standard Time. Coordinated Universal Time is 13 hours behind New Zealand Daylight Time. Coordinated Universal Time is 6 hours ahead of Central Standard Time.
12:00 pm12:00 in UTC is 5:30 pm17:30 in IST and is 11:00 pm23:00 in Sydney, Australia and is 8:00 pm20:00 in SGT and is 7:00 am07:00 in EST and is 1:00 am01:00 in NZDT (next day) and is 6:00 am06:00 in CST

UTC to IST call time
Best time for a conference call or a meeting is between 9am-12:30pm09:00-12:30 in UTC which corresponds to 2:30pm-6pm14:30-18:00 in IST.
UTC to Sydney call time
Best time for a conference call or a meeting is between 7:30am-8:30am07:30-08:30 in UTC which corresponds to 6:30pm-7:30pm18:30-19:30 in Sydney. Their 9am–6pm09:00–18:00 working hours do not overlap; this is a suggested compromise.
UTC to SGT call time
Best time for a conference call or a meeting is between 9am-10am09:00-10:00 in UTC which corresponds to 5pm-6pm17:00-18:00 in SGT.
UTC to EST call time
Best time for a conference call or a meeting is between 2pm-6pm14:00-18:00 in UTC which corresponds to 9am-1pm09:00-13:00 in EST.
UTC to NZDT call time
Best time for a conference call or a meeting is between 6:30pm-7:30pm18:30-19:30 in UTC which corresponds to 7:30am-8:30am07:30-08:30 in NZDT (next day). Their 9am–6pm09:00–18:00 working hours do not overlap; this is a suggested compromise.
UTC to CST call time
Best time for a conference call or a meeting is between 3pm-6pm15:00-18:00 in UTC which corresponds to 9am-12pm09:00-12:00 in CST.

12:00 pm12:00 Coordinated Universal Time (UTC). Offset UTC 0:00 hours
5:30 pm17:30 India Standard Time (IST). Offset UTC +5:30 hours
11:00 pm23:00 AEDT (Australian Eastern Daylight Time) (Sydney, Australia). Offset UTC +11:00 hours
8:00 pm20:00 Singapore Time (SGT). Offset UTC +8:00 hours
7:00 am07:00 Eastern Standard Time (EST). Offset UTC -5:00 hours
1:00 am01:00 New Zealand Daylight Time (NZDT). Offset UTC +13:00 hours
6:00 am06:00 Central Standard Time (CST). Offset UTC -6:00 hours

12:00 pm12:00 UTC / 5:30 pm17:30 IST / 11:00 pm23:00 Sydney, Australia / 8:00 pm20:00 SGT / 7:00 am07:00 EST / 1:00 am01:00 NZDT (next day) / 6:00 am06:00 CST

Choose an hour to update the converter. Day labels such as “next day” or “+1” are relative to the selected date in the first column. Use Up and Down arrow keys, Home or End to move between hours, then Enter or Space to select.

Hourly time comparison
UTCISTSydney, AustraliaSGTESTNZDTCST
5:30am11:00am8:00am7:00pm previous day1:00pm6:00pm previous day
6:30am12:00pm9:00am8:00pm previous day2:00pm7:00pm previous day
7:30am1:00pm10:00am9:00pm previous day3:00pm8:00pm previous day
8:30am2:00pm11:00am10:00pm previous day4:00pm9:00pm previous day
9:30am3:00pm12:00pm11:00pm previous day5:00pm10:00pm previous day
10:30am4:00pm1:00pm12:00am6:00pm11:00pm previous day
11:30am5:00pm2:00pm1:00am7:00pm12:00am
12:30pm6:00pm3:00pm2:00am8:00pm1:00am
1:30pm7:00pm4:00pm3:00am9:00pm2:00am
2:30pm8:00pm5:00pm4:00am10:00pm3:00am
3:30pm9:00pm6:00pm5:00am11:00pm4:00am
4:30pm10:00pm7:00pm6:00am12:00am next day5:00am
5:30pm11:00pm8:00pm7:00am1:00am next day6:00am
6:30pm12:00am next day9:00pm8:00am2:00am next day7:00am
7:30pm1:00am next day10:00pm9:00am3:00am next day8:00am
8:30pm2:00am next day11:00pm10:00am4:00am next day9:00am
9:30pm3:00am next day12:00am next day11:00am5:00am next day10:00am
10:30pm4:00am next day1:00am next day12:00pm6:00am next day11:00am
11:30pm5:00am next day2:00am next day1:00pm7:00am next day12:00pm
12:30am next day6:00am next day3:00am next day2:00pm8:00am next day1:00pm
1:30am next day7:00am next day4:00am next day3:00pm9:00am next day2:00pm
2:30am next day8:00am next day5:00am next day4:00pm10:00am next day3:00pm
3:30am next day9:00am next day6:00am next day5:00pm11:00am next day4:00pm
4:30am next day10:00am next day7:00am next day6:00pm12:00pm next day5:00pm
05:3011:0008:0019:00 previous day13:0018:00 previous day
06:3012:0009:0020:00 previous day14:0019:00 previous day
07:3013:0010:0021:00 previous day15:0020:00 previous day
08:3014:0011:0022:00 previous day16:0021:00 previous day
09:3015:0012:0023:00 previous day17:0022:00 previous day
10:3016:0013:0000:0018:0023:00 previous day
11:3017:0014:0001:0019:0000:00
12:3018:0015:0002:0020:0001:00
13:3019:0016:0003:0021:0002:00
14:3020:0017:0004:0022:0003:00
15:3021:0018:0005:0023:0004:00
16:3022:0019:0006:0000:00 next day05:00
17:3023:0020:0007:0001:00 next day06:00
18:3000:00 next day21:0008:0002:00 next day07:00
19:3001:00 next day22:0009:0003:00 next day08:00
20:3002:00 next day23:0010:0004:00 next day09:00
21:3003:00 next day00:00 next day11:0005:00 next day10:00
22:3004:00 next day01:00 next day12:0006:00 next day11:00
23:3005:00 next day02:00 next day13:0007:00 next day12:00
00:30 next day06:00 next day03:00 next day14:0008:00 next day13:00
01:30 next day07:00 next day04:00 next day15:0009:00 next day14:00
02:30 next day08:00 next day05:00 next day16:0010:00 next day15:00
03:30 next day09:00 next day06:00 next day17:0011:00 next day16:00
04:30 next day10:00 next day07:00 next day18:0012:00 next day17:00

Coordinated Universal Time

Offset: UTC is the same as Greenwich Mean Time (GMT).

Countries using this time zone: Antarctica, Burkina Faso, Faroe Islands, Gambia, Ghana, Greenland, Guernsey, Guinea, Guinea-Bissau, Iceland, Ireland, Isle of Man, Ivory Coast, Jersey, Liberia, Mali, Mauritania, Morocco, Portugal, Saint Helena, São Tomé and Príncipe, Senegal, Sierra Leone, Spain, Togo, United Kingdom, Western Sahara

Principal Cities: The largest city in the UTC time zone is London in the United Kingdom, with about 8.962 million people. Other major cities in this time zone include Abidjan, Bamako, Casablanca, Dakar.

Coordinated Universal Time (UTC) is the world time standard that regulates clocks and time. It is the successor to Greenwich Mean Time (GMT). For casual use, UTC is the same as GMT, but UTC is the standard the scientific community uses.
UTC has been the time standard commonly used across the world since 1972. It is used in many technical fields, such as aviation and meteorology, and to synchronize time across internet networks.

Map of the areas on Coordinated Universal Time (UTC)
UTC all year UTC part of the year

Today some of the lighter areas are on UTC−1.

UTC 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 the zero UTC/GMT offset.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Zulu - Military abbreviation for UTC
  • Z - short form of 'Zulu'
IANA/Olson: Reflects UTC time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Etc/UCT
  • Etc/UTC
  • Etc/Universal
  • Etc/Zulu
  • UCT
  • UTC
  • Universal
  • 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 - Coordinated Universal Time
  • WT - Western Sahara Standard Time
  • Z - Zulu Time Zone

India Standard Time

Offset: IST is 5 hours and 30 minutes ahead of Greenwich Mean Time (GMT).

Countries using this time zone: India

Principal Cities: The largest city in the IST time zone is Mumbai in India, with about 12.692 million people. Other major cities in this time zone include Delhi, Bengaluru, Hyderabad, Ahmedabad.

Daylight Saving: Clocks in India Standard Time (IST) do not change for daylight saving time, so IST stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter; see upcoming clock changes worldwide.

Current time in India: India time now

IST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +0530 - basic
  • +05:30 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0530 - sign character (+) followed by a four digit time providing hours (05) and minutes (30) of the offset. Indicates an offset of five hours and thirty minutes to the east of the zero meridian.
IANA/Olson: Reflects IST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Asia/Calcutta
  • Asia/Kolkata
IST Abbreviation: Several time zones share IST abbreviation and it could refer to these time zones
  • India Standard Time - UTC +5:30
  • Irish Standard Time - UTC +1
  • Israel Standard Time - UTC +2

Sydney Time Zone and Facts

Time Zone

Abbreviation / Offset
AEDT – Australian Eastern Daylight Time, UTC+11 (now, daylight saving time)
AEST – Australian Eastern Standard Time, UTC+10 (standard time)
Daylight Saving Time Ends
123456789101112Sunday, April 4, 2027 at 3:00 amSunday, April 4, 2027 at 03:00: clocks go back 1 hour to 2:00 am02:00 (AEST). DST ends on the 1st Sunday of April each year. Also called Fall Back or Winter Time.
Daylight Saving Time Starts
123456789101112Sunday, October 3, 2027 at 2:00 amSunday, October 3, 2027 at 02:00: clocks go forward 1 hour to 3:00 am03:00 (AEDT). DST starts on the 1st Sunday of October each year. Also called Spring Forward or Summer Time.

Sydney Facts

Country
Australia
Alternative Names
SYD, Sanctus Dionysius, Sedniejos, Sek-na, Sidnef, Sidnei, Sidnej, Sidneja, Sidnejo, Sidnejus, Sidney, Sidneý, Sidni, Sidnéy, Sidnėjus, Sit-ni, Sit-nì, Syd, Sydneium, Sydney, Sydney City, Sék-nà̤, Sídney, Sîdney, Sėdniejos, citni, shidoni, sidani, sideuni, sidnei, sidni, sidniy, sydny, xi ni, xue li, Σίδνεϋ, Сиднеи, Сидней, Сиднеј, Сидни, Сідней, Сідні, Սիդնեյ, סידני, سيدنى, سيدني, سڈنی, سیدنی, ܣܝܕܢܝ, सिडनी, सिड्नी, सिद्नी, সিডনি, ਸਿਡਨੀ, સીડની, சிட்னி, సిడ్నీ, ಸಿಡ್ನಿ, സിഡ്നി, සිඩ්නි, ซิดนีย์, སིད་ནེ།, ဆစ်ဒနီမြို့, სიდნეი, ሲድኒ, ស៊ីដនីយ៏, シドニー, 悉尼, 雪梨, 시드니
Population
5,638,830
Currency
Dollar (AUD)
Geographic Coordinates
33° 52' S Latitude / 151° 12' E Longitude
International Dialing Code
+61
More About Sydney

Singapore Time

Offset: SGT is 8 hours ahead of Greenwich Mean Time (GMT).

Countries using this time zone: Singapore

Principal Cities: The largest city in the SGT time zone is Singapore in Singapore, with about 5.639 million people.

Daylight Saving: Clocks in Singapore Time (SGT) do not change for daylight saving time, so SGT stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter; see upcoming clock changes worldwide.

Current time in Singapore: Singapore time now

SGT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +08 - basic short
  • +0800 - basic
  • +08:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0800 - sign character (+) followed by a four digit time providing hours (08) and minutes (00) of the offset. Indicates an offset of eight hours to the east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Hotel - Military abbreviation for SGT
  • H - short form of 'Hotel'
Time zones with the GMT +8 offset:
  • ACT - ASEAN Common Time
  • AWST - Australian Western Standard Time
  • BNT - Brunei Darussalam Time
  • CAST - Casey Time
  • CHOT - Choibalsan Time
  • CST - China Standard Time
  • H - Hotel Time Zone
  • HKT - Hong Kong Time
  • HOVST - Hovd Summer Time
  • IRKT - Irkutsk Time
  • KRAST - Krasnoyarsk Summer Time
  • MYT - Malaysia Time
  • PHT - Philippine Time
  • SGT - Singapore Time
  • ULAT - Ulaanbaatar Time
  • WITA - Central Indonesian Time

Eastern Standard Time

Offset: EST is 5 hours behind Greenwich Mean Time (GMT).

Countries using this time zone: Bahamas, Canada, Cayman Islands, Haiti, Jamaica, Mexico, Panama, Turks and Caicos Islands, United States

Principal Cities: The largest city in the EST time zone is New York City in the United States, with about 8.804 million people. Other major cities in this time zone include Toronto, Montréal, Philadelphia, Port-au-Prince.

French: HNE - Heure Normale de l'Est

Spanish: ET - Tiempo del Este, ET - Zona Sureste

Map of the areas on Eastern Standard Time (EST)
EST all year EST part of the year

Today all shaded areas are on EST.

Daylight Saving: This is a standard time zone. During summer, some places set clocks forward one hour for daylight saving time and observe Eastern Daylight Time (EDT).

123456789101112Start: Eastern Standard Time (EST) started on Sunday, November 1, 2026 at 2:00 am02:00 local time and clocks were set one hour back to Sunday, November 1, 2026, 1:00 am01:00. Standard time starts annually on the first Sunday of November.

123456789101112End: Eastern Standard Time (EST) ends on Sunday, March 14, 2027 at 2:00 am02:00 local time and clocks are set one hour forward to Sunday, March 14, 2027, 3:00 am03:00 local daylight time instead. Standard time ends annually on the second Sunday of March.

See USA daylight saving time and upcoming clock changes worldwide.

EST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -05 - basic short
  • -0500 - basic
  • -05:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -0500 - sign character (-) followed by a four digit time providing hours (05) and minutes (00) of the offset. Indicates an offset of five hours to the west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Romeo - Military abbreviation for EST
  • R - short form of 'Romeo'
IANA/Olson: Reflects EST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • America/Atikokan
  • America/Cancun
  • America/Cayman
  • America/Coral_Harbour
  • America/Detroit
  • America/Fort_Wayne
  • America/Grand_Turk
  • America/Indiana/Indianapolis
  • America/Indiana/Marengo
  • America/Indiana/Petersburg
  • America/Indiana/Vevay
  • America/Indiana/Vincennes
  • America/Indiana/Winamac
  • America/Indianapolis
  • America/Iqaluit
  • America/Jamaica
  • America/Kentucky/Louisville
  • America/Kentucky/Monticello
  • America/Louisville
  • America/Montreal
  • America/Nassau
  • America/New_York
  • America/Nipigon
  • America/Panama
  • America/Pangnirtung
  • America/Port-au-Prince
  • America/Thunder_Bay
  • America/Toronto
  • Canada/Eastern
  • EST
  • EST5EDT
  • Jamaica
  • US/East-Indiana
  • US/Eastern
  • US/Michigan
Time zones with the GMT -5 offset:
  • 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

New Zealand Daylight Time

Offset: NZDT is 13 hours ahead of Greenwich Mean Time (GMT).

Countries using this time zone: Antarctica, New Zealand

Principal Cities: The largest city in the NZDT time zone is Auckland in New Zealand, with about 1.547 million people. Other major cities in this time zone include Christchurch, Wellington, Hamilton, Tauranga.

Map of the areas on New Zealand Daylight Time (NZDT)
NZDT part of the year

Today all shaded areas are on NZDT.

Daylight Saving: New Zealand Daylight Time (NZDT) is a daylight saving/summer time zone. During winter, some places set clocks back one hour and observe New Zealand Standard Time (NZST).

123456789101112Start: New Zealand Daylight Time (NZDT) started on Sunday, September 27, 2026 at 2:00 am02:00 local time and clocks were set one hour forward to Sunday, September 27, 2026, 3:00 am03:00. Daylight saving starts annually on the last Sunday of September.

123456789101112End: New Zealand Daylight Time (NZDT) ends on Sunday, April 4, 2027 at 3:00 am03:00 local time and clocks are set one hour back to Sunday, April 4, 2027, 2:00 am02:00 local standard time instead. Daylight saving ends annually on the first Sunday of April.

See New Zealand daylight saving time and upcoming clock changes worldwide.

NZDT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +13 - basic short
  • +1300 - basic
  • +13:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +1300 - sign character (+) followed by a four digit time providing hours (13) and minutes (00) of the offset. Indicates an offset of thirteen hours to the east of the zero meridian.
IANA/Olson: Reflects NZDT time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Antarctica/McMurdo
  • Antarctica/South_Pole
  • NZ
  • Pacific/Auckland
Time zones with the GMT +13 offset:
  • FJST - Fiji Summer Time
  • NZDT - New Zealand Daylight Time
  • PHOT - Phoenix Island Time
  • TKT - Tokelau Time
  • TOT - Tonga Time
  • WST - West Samoa Time
  • WSST - West Samoa Standard Time

Central Standard Time

Offset: CST is 6 hours behind Greenwich Mean Time (GMT).

Countries using this time zone: Belize, Canada, Costa Rica, El Salvador, Guatemala, Honduras, Mexico, Nicaragua, United States

Principal Cities: The largest city in the CST time zone is Mexico City in Mexico, with about 12.294 million people. Other major cities in this time zone include Chicago, Houston, Puebla, Santiago de Querétaro.

French: HNC - Heure Normale du Centre

Spanish: CT - Tiempo Central Estándar, CT - Zona Centro

Map of the areas on Central Standard Time (CST)
CST all year CST part of the year

Today all shaded areas are on CST.

Daylight Saving: This is a standard time zone. During summer, some places set clocks forward one hour for daylight saving time and observe Central Daylight Time (CDT).

123456789101112Start: Central Standard Time (CST) started on Sunday, November 1, 2026 at 2:00 am02:00 local time and clocks were set one hour back to Sunday, November 1, 2026, 1:00 am01:00. Standard time starts annually on the first Sunday of November.

123456789101112End: Central Standard Time (CST) ends on Sunday, March 14, 2027 at 2:00 am02:00 local time and clocks are set one hour forward to Sunday, March 14, 2027, 3:00 am03:00 local daylight time instead. Standard time ends annually on the second Sunday of March.

See USA daylight saving time and upcoming clock changes worldwide.

CST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -06 - basic short
  • -0600 - basic
  • -06:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -0600 - sign character (-) followed by a four digit time providing hours (06) and minutes (00) of the offset. Indicates an offset of six hours to the west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Sierra - Military abbreviation for CST
  • S - short form of 'Sierra'
IANA/Olson: Reflects CST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • 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
CST Abbreviation: Several time zones share CST abbreviation and it could refer to these time zones
  • Central Standard Time - UTC -6
  • China Standard Time - UTC +8
  • Cuba Standard Time - UTC -5
Time zones with the GMT -6 offset:
  • CST - Central Standard Time
  • CT - Central Time
  • MDT - Mountain Daylight Time
  • EAST - Easter Island Standard Time
  • GALT - Galapagos Time
  • S - Sierra Time Zone