Updating current time…
United Arab EmiratesGST
UTC+4
12am
3am
6am
9am
12pm
3pm
6pm
9pm
AEDT
12am
3am
6am
9am
12pm
3pm
6pm
9pm
United KingdomBST
UTC+1
3h behind
12am
3am
6am
9am
12pm
3pm
6pm
9pm
London's clocks go back 1 hour on Sun, Oct 25 · BST → GMT
EDT/EST
UTC−4
8h behind
12am
3am
6am
9am
12pm
3pm
6pm
9pm
Eastern Time is on daylight saving time: EDT (UTC−4) until Sun, Nov 1.
CDT/CST
UTC−5
9h behind
12am
3am
6am
9am
12pm
3pm
6pm
9pm
Central Time is on daylight saving time: CDT (UTC−5) until Sun, Nov 1.

Mexico City and Saskatchewan stay on CST (UTC−6).

MDT
UTC−6
10h behind
12am
3am
6am
9am
12pm
3pm
6pm
9pm
PDT/PST
UTC−7
11h behind
12am
3am
6am
9am
12pm
3pm
6pm
9pm
Pacific Time is on daylight saving time: PDT (UTC−7) until Sun, Nov 1.

Quick answers

Selected conversion

4:00 pm16:00 GST (UTC+4), Oct 22, 2026 = 11:00 pm23:00 AEDT (UTC+11), Oct 22, 2026 = 1:00 pm13:00 BST (UTC+1), Oct 22, 2026 = 8:00 am08:00 EDT (UTC-4), Oct 22, 2026 = 7:00 am07:00 CDT (UTC-5), Oct 22, 2026 = 6:00 am06:00 MDT (UTC-6), Oct 22, 2026 = 5:00 am05:00 PDT (UTC-7), Oct 22, 2026

Dubai is 7 hours behind AEDT. Dubai is 3 hours ahead of London. Dubai is 8 hours ahead of EDT. Dubai is 9 hours ahead of CDT. Dubai is 10 hours ahead of MDT. Dubai is 11 hours ahead of PDT.

How the time difference changes

Dubai to AEDT

Depending on seasonal clock changes, Dubai is 6 hours behind AEST or Dubai is 7 hours behind AEDT.

Depending on seasonal clock changes, working hours of 9:00 am to 6:00 pm in Dubai correspond to 3:00 pm to 12:00 am (next day) in AEST or working hours of 9:00 am to 6:00 pm in Dubai correspond to 4:00 pm to 1:00 am (next day) in AEDT.Depending on seasonal clock changes, working hours of 09:00 to 18:00 in Dubai correspond to 15:00 to 00:00 (next day) in AEST or working hours of 09:00 to 18:00 in Dubai correspond to 16:00 to 01:00 (next day) in AEDT.

Dubai to London

For most of the year, Dubai is 3 hours ahead of London. From Oct 25, 2026 to Mar 28, 2027, Dubai is 4 hours ahead of London.

For most of the year, working hours of 9:00 am to 6:00 pm in Dubai correspond to 6:00 am to 3:00 pm in London. At other times of the year, working hours of 9:00 am to 6:00 pm in Dubai correspond to 5:00 am to 2:00 pm in London.For most of the year, working hours of 09:00 to 18:00 in Dubai correspond to 06:00 to 15:00 in London. At other times of the year, working hours of 09:00 to 18:00 in Dubai correspond to 05:00 to 14:00 in London.

Dubai to EST

For most of the year, Dubai is 8 hours ahead of EDT. From Nov 1, 2026 to Mar 14, 2027, Dubai is 9 hours ahead of EST.

For most of the year, working hours of 9:00 am to 6:00 pm in Dubai correspond to 1:00 am to 10:00 am in EDT. At other times of the year, working hours of 9:00 am to 6:00 pm in Dubai correspond to 12:00 am to 9:00 am in EST.For most of the year, working hours of 09:00 to 18:00 in Dubai correspond to 01:00 to 10:00 in EDT. At other times of the year, working hours of 09:00 to 18:00 in Dubai correspond to 00:00 to 09:00 in EST.

Dubai to CST

For most of the year, Dubai is 9 hours ahead of CDT. From Nov 1, 2026 to Mar 14, 2027, Dubai is 10 hours ahead of CST.

For most of the year, working hours of 9:00 am to 6:00 pm in Dubai correspond to 12:00 am to 9:00 am in CDT. At other times of the year, working hours of 9:00 am to 6:00 pm in Dubai correspond to 11:00 pm (previous day) to 8:00 am in CST.For most of the year, working hours of 09:00 to 18:00 in Dubai correspond to 00:00 to 09:00 in CDT. At other times of the year, working hours of 09:00 to 18:00 in Dubai correspond to 23:00 (previous day) to 08:00 in CST.

Dubai to MDT

For most of the year, Dubai is 10 hours ahead of MDT. From Nov 1, 2026 to Mar 14, 2027, Dubai is 11 hours ahead of MST.

For most of the year, working hours of 9:00 am to 6:00 pm in Dubai correspond to 11:00 pm (previous day) to 8:00 am in MDT. At other times of the year, working hours of 9:00 am to 6:00 pm in Dubai correspond to 10:00 pm (previous day) to 7:00 am in MST.For most of the year, working hours of 09:00 to 18:00 in Dubai correspond to 23:00 (previous day) to 08:00 in MDT. At other times of the year, working hours of 09:00 to 18:00 in Dubai correspond to 22:00 (previous day) to 07:00 in MST.

Dubai to PST

For most of the year, Dubai is 11 hours ahead of PDT. From Nov 1, 2026 to Mar 14, 2027, Dubai is 12 hours ahead of PST.

For most of the year, working hours of 9:00 am to 6:00 pm in Dubai correspond to 10:00 pm (previous day) to 7:00 am in PDT. At other times of the year, working hours of 9:00 am to 6:00 pm in Dubai correspond to 9:00 pm (previous day) to 6:00 am in PST.For most of the year, working hours of 09:00 to 18:00 in Dubai correspond to 22:00 (previous day) to 07:00 in PDT. At other times of the year, working hours of 09:00 to 18:00 in Dubai correspond to 21:00 (previous day) to 06:00 in PST.

Compare Dubai time with AEDT, London, EST, CST, MDT, and PST time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.

Time Difference

GST (Gulf Standard Time) is 7 hours behind Australian Eastern Daylight Time. GST (Gulf Standard Time) is 3 hours ahead of BST (British Summer Time). GST (Gulf Standard Time) is 8 hours ahead of Eastern Daylight Time. GST (Gulf Standard Time) is 9 hours ahead of Central Daylight Time. GST (Gulf Standard Time) is 10 hours ahead of Mountain Daylight Time. GST (Gulf Standard Time) is 11 hours ahead of Pacific Daylight Time.
4:00 pm16:00 in Dubai, United Arab Emirates is 11:00 pm23:00 in AEDT and is 1:00 pm13:00 in London, United Kingdom and is 8:00 am08:00 in EDT and is 7:00 am07:00 in CDT and is 6:00 am06:00 in MDT and is 5:00 am05:00 in PDT

Dubai to AEDT call time
Best time for a conference call or a meeting is between 9am-11am09:00-11:00 in Dubai which corresponds to 4pm-6pm16:00-18:00 in AEDT
Dubai to London call time
Best time for a conference call or a meeting is between 12pm-6pm12:00-18:00 in Dubai which corresponds to 9am-3pm09:00-15:00 in London
Dubai to EDT call time
Best time for a conference call or a meeting is between 5pm-6pm17:00-18:00 in Dubai which corresponds to 9am-10am09:00-10:00 in EDT
Dubai to CDT call time
Best time for a conference call or a meeting is between 5:30pm-6:30pm17:30-18:30 in Dubai which corresponds to 8:30am-9:30am08:30-09:30 in CDT. Their 9am–6pm09:00–18:00 working hours do not overlap; this is a suggested compromise.
Dubai to MDT call time
Best time for a conference call or a meeting is between 6pm-7pm18:00-19:00 in Dubai which corresponds to 8am-9am08:00-09:00 in MDT. Their 9am–6pm09:00–18:00 working hours do not overlap; this is a suggested compromise.
Dubai to PDT call time
Best time for a conference call or a meeting is between 6:30pm-7:30pm18:30-19:30 in Dubai which corresponds to 7:30am-8:30am07:30-08:30 in PDT. Their 9am–6pm09:00–18:00 working hours do not overlap; this is a suggested compromise.

4:00 pm16:00 GST (Gulf Standard Time) (Dubai, United Arab Emirates). Offset UTC +4:00 hours
11:00 pm23:00 Australian Eastern Daylight Time (AEDT). Offset UTC +11:00 hours
1:00 pm13:00 BST (British Summer Time) (London, United Kingdom). Offset UTC +1:00 hour
8:00 am08:00 Eastern Daylight Time (EDT). Offset UTC -4:00 hours
7:00 am07:00 Central Daylight Time (CDT). Offset UTC -5:00 hours
6:00 am06:00 Mountain Daylight Time (MDT). Offset UTC -6:00 hours
5:00 am05:00 Pacific Daylight Time (PDT). Offset UTC -7:00 hours

4:00 pm16:00 Dubai, United Arab Emirates / 11:00 pm23:00 AEDT / 1:00 pm13:00 London, United Kingdom / 8:00 am08:00 EDT / 7:00 am07:00 CDT / 6:00 am06:00 MDT / 5:00 am05:00 PDT

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
Dubai, United Arab EmiratesAEDTLondon, United KingdomEDTCDTMDTPDT
7:00am9:00pm previous day4:00pm previous day3:00pm previous day2:00pm previous day1:00pm previous day
8:00am10:00pm previous day5:00pm previous day4:00pm previous day3:00pm previous day2:00pm previous day
9:00am11:00pm previous day6:00pm previous day5:00pm previous day4:00pm previous day3:00pm previous day
10:00am12:00am7:00pm previous day6:00pm previous day5:00pm previous day4:00pm previous day
11:00am1:00am8:00pm previous day7:00pm previous day6:00pm previous day5:00pm previous day
12:00pm2:00am9:00pm previous day8:00pm previous day7:00pm previous day6:00pm previous day
1:00pm3:00am10:00pm previous day9:00pm previous day8:00pm previous day7:00pm previous day
2:00pm4:00am11:00pm previous day10:00pm previous day9:00pm previous day8:00pm previous day
3:00pm5:00am12:00am11:00pm previous day10:00pm previous day9:00pm previous day
4:00pm6:00am1:00am12:00am11:00pm previous day10:00pm previous day
5:00pm7:00am2:00am1:00am12:00am11:00pm previous day
6:00pm8:00am3:00am2:00am1:00am12:00am
7:00pm9:00am4:00am3:00am2:00am1:00am
8:00pm10:00am5:00am4:00am3:00am2:00am
9:00pm11:00am6:00am5:00am4:00am3:00am
10:00pm12:00pm7:00am6:00am5:00am4:00am
11:00pm1:00pm8:00am7:00am6:00am5:00am
12:00am next day2:00pm9:00am8:00am7:00am6:00am
1:00am next day3:00pm10:00am9:00am8:00am7:00am
2:00am next day4:00pm11:00am10:00am9:00am8:00am
3:00am next day5:00pm12:00pm11:00am10:00am9:00am
4:00am next day6:00pm1:00pm12:00pm11:00am10:00am
5:00am next day7:00pm2:00pm1:00pm12:00pm11:00am
6:00am next day8:00pm3:00pm2:00pm1:00pm12:00pm
07:0021:00 previous day16:00 previous day15:00 previous day14:00 previous day13:00 previous day
08:0022:00 previous day17:00 previous day16:00 previous day15:00 previous day14:00 previous day
09:0023:00 previous day18:00 previous day17:00 previous day16:00 previous day15:00 previous day
10:0000:0019:00 previous day18:00 previous day17:00 previous day16:00 previous day
11:0001:0020:00 previous day19:00 previous day18:00 previous day17:00 previous day
12:0002:0021:00 previous day20:00 previous day19:00 previous day18:00 previous day
13:0003:0022:00 previous day21:00 previous day20:00 previous day19:00 previous day
14:0004:0023:00 previous day22:00 previous day21:00 previous day20:00 previous day
15:0005:0000:0023:00 previous day22:00 previous day21:00 previous day
16:0006:0001:0000:0023:00 previous day22:00 previous day
17:0007:0002:0001:0000:0023:00 previous day
18:0008:0003:0002:0001:0000:00
19:0009:0004:0003:0002:0001:00
20:0010:0005:0004:0003:0002:00
21:0011:0006:0005:0004:0003:00
22:0012:0007:0006:0005:0004:00
23:0013:0008:0007:0006:0005:00
00:00 next day14:0009:0008:0007:0006:00
01:00 next day15:0010:0009:0008:0007:00
02:00 next day16:0011:0010:0009:0008:00
03:00 next day17:0012:0011:0010:0009:00
04:00 next day18:0013:0012:0011:0010:00
05:00 next day19:0014:0013:0012:0011:00
06:00 next day20:0015:0014:0013:0012:00

Dubai Time Zone and Facts

Time Zone

Abbreviation / Offset
GST – Gulf Standard Time, UTC+4 (no daylight saving time)

Dubai Facts

Country
United Arab Emirates
Alternative Names
DXB, Dabei, Dibai, Dibay, Doubayi, Dubae, Dubai, Dubai City, Dubai emiraat, Dubaija, Dubaj, Dubajo, Dubajus, Dubay, Dubayy, Dubaï, Dubái, Dúbæ, Ehmirat Dubaj, Fort Dabei, Ntoumpai, dby, dbyy, di bai, dobai, du bai, duba'i, dubai, dubay, dubi, dwbyy, tupai, Ντουμπάι, Дубаи, Дубай, Эмірат Дубай, Դուբայի Էմիրություն, דובאי, דוביי, دبئی, دبى, دبي, دبی, دوبەی, دۇبائى, दुबई, দুবাই, துபை, దుబాయ్, ದುಬೈ, ദുബായ്, ดูไบ, დუბაი, ドバイ, 杜拜, 迪拜, 두바이
Population
3,790,000
Currency
Dirham (AED)
Geographic Coordinates
25° 04' N Latitude / 55° 18' E Longitude
International Dialing Code
+971

Australian Eastern Daylight Time

Offset: AEDT is 11 hours ahead of Greenwich Mean Time (GMT).

Countries using this time zone: Australia

Principal Cities: The largest city in the AEDT time zone is Sydney in Australia, with about 5.639 million people. Other major cities in this time zone include Melbourne, Newcastle, Canberra, Central Coast.

Map of the areas on Australian Eastern Daylight Time (AEDT)
AEDT part of the year

Today all shaded areas are on AEDT.

Daylight Saving: Australian Eastern Daylight Time (AEDT) is a daylight saving/summer time zone. During winter, some places set clocks back one hour and observe Australian Eastern Standard Time (AEST).

123456789101112Start: Australian Eastern Daylight Time (AEDT) started on Sunday, October 4, 2026 at 2:00 am02:00 local time and clocks were set one hour forward to Sunday, October 4, 2026, 3:00 am03:00. Daylight saving starts annually on the first Sunday of October.

123456789101112End: Australian Eastern Daylight Time (AEDT) 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 Australia daylight saving time and upcoming clock changes worldwide.

Australian Eastern Daylight Time (AEDT) is observer in New South Wales (except Broken Hill and Lord Howe Island), Victoria, Tasmania, Australian Capital Territory, Sydney, Melbourne, Hobart, Canberra AEDT is equal to Coordinated Universal Time plus 11 hours (UTC +11). During a summer time period, these locations move from AEST to Australian Eastern Daylight Time (AEDT), and clocks are advanced to UTC +11.

Daylight saving or summer time is commonly expressed as AEDT (Australian Eastern Daylight Time). In periods of daylight saving an hour is added to the Local Standard Time.

The regulation of time is a State Government responsibility. Changes to the period of daylight saving may be made by regulation. Legislation to harmonise daylight saving in NSW with the south-eastern states and the ACT was passed by the NSW Parliament on 23 October 2007.

History of daylight saving in New South Wales
Daylight saving operated nationally for single summer during World War I from 1 January 1917 to 25 March 1917 and during World War II for three summers in a row, starting on 1 January 1942. Daylight saving was re-introduced for third time in New South Wales on 31 October 1971 after New South Wales Parliament passed the Standard Time Act 1971. A referendum held on 1 May 1976 proposed that daylight saving should be on a permanent basis. The ballot paper stated: "At present there is a period commonly called 'daylight saving' by which time is advanced by one hour for the period commencing on the last Sunday in October in each year and ending on the first Sunday in March in the following year. Electors were then asked to answer YES or NO to the question: Are you in favour of daylight saving? 1,882,770 electors were in favour, 868,900 were against and 35,507 votes were informal.\" The period of daylight saving is prescribed by the Daylight Saving Regulations 2008, made under the Daylight Saving Act 2007. Since April 2008, daylight saving has been synchronised across Tasmania, New South Wales, Victoria, the ACT and South Australia, although South Australia remains half an hour behind throughout the year due to the observance of Australian Central Standard Time.

Which is correct Daylight Savings or Daylight Saving (with or without the 's' at the end)? The correct spelling in Australia is without the 's'.

AEDT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +11 - basic short
  • +1100 - basic
  • +11:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +1100 - sign character (+) followed by a four digit time providing hours (11) and minutes (00) of the offset. Indicates an offset of eleven hours to the east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Lima - Military abbreviation for AEDT
  • L - short form of 'Lima'
IANA/Olson: Reflects AEDT time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Antarctica/Macquarie
  • Australia/ACT
  • Australia/Canberra
  • Australia/Currie
  • Australia/Hobart
  • Australia/Melbourne
  • Australia/NSW
  • Australia/Sydney
  • Australia/Tasmania
  • Australia/Victoria
Time zones with the GMT +11 offset:
  • AEDT - Australian Eastern Daylight Time
  • BST - Bougainville Standard Time
  • KOST - Kosrae Time
  • L - Lima Time Zone
  • LHDT - Lord Howe Daylight Time
  • MAGT - Magadan Time
  • NCT - New Caledonia Time
  • NFT - Norfolk Time
  • PONT - Pohnpei Standard Time
  • SBT - Solomon Islands Time
  • VLAST - Vladivostok Summer Time
  • VUT - Vanuatu Time

London Time Zone and Facts

Time Zone

Abbreviation / Offset
BST – British Summer Time, UTC+1 (now, daylight saving time)
GMT – Greenwich Mean Time, UTC+0 (standard time)
Daylight Saving Time Ends
123456789101112Sunday, October 25, 2026 at 2:00 amSunday, October 25, 2026 at 02:00: clocks go back 1 hour to 1:00 am01:00 (GMT). DST ends on the last Sunday of October each year. Also called Fall Back or Winter Time.
Daylight Saving Time Starts
123456789101112Sunday, March 28, 2027 at 1:00 amSunday, March 28, 2027 at 01:00: clocks go forward 1 hour to 2:00 am02:00 (BST). DST starts on the last Sunday of March each year. Also called Spring Forward or Summer Time.

London Facts

Country
United Kingdom
Alternative Names
ILondon, LON, Lakana, Landan, Landen, Ljondan, Llundain, Lodoni, Londain, Londan, Londar, Londe, Londen, Londin, Londinium, Londino, Londn, London, London osh, Londona, Londonas, Londoni, Londono, Londons, Londonu, Londra, Londres, Londrez, Londri, Londro, Londye, Londyn, Londýn, Lonn, Lontoo, Loundres, Luan GJon, Lun-tun, Lunden, Lundra, Lundun, Lundunir, Lundúnir, Lung-dung, Lunnainn, Lunnin, Lunnon, Luân Đôn, Lùn-tûn, Lùng-dŭng, Lûn-tun, Lākana, Lůndůn, Lọndọnu, Ranana, Rānana, ilantan, ladana, landan, landana, leondeon, lndn, london, londoni, lun dui, lun dun, lwndwn, lxndxn, rondon, Łondra, Λονδίνο, Лондан, Лондон, Лондон ош, Лондонъ, Лёндан, Լոնդոն, לאנדאן, לונדון, لأندأن, لندن, لوندون, لەندەن, ܠܘܢܕܘܢ, लंडन, लंदन, लण्डन, लन्डन्, लन्दन, লন্ডন, ਲੰਡਨ, લંડન, ଲଣ୍ଡନ, இலண்டன், లండన్, ಲಂಡನ್, ലണ്ടൻ, ලන්ඩන්, ลอนดอน, ລອນດອນ, ལོན་ཊོན།, လန်ဒန်မြို့, ლონდონი, ለንደን, ᎫᎴ ᏗᏍᎪᏂᎯᏱ, ロンドン, 伦敦, 倫敦, 런던
Population
8,961,989
Currency
Pound (GBP)
Geographic Coordinates
51° 30' N Latitude / 0° 07' W Longitude
International Dialing Code
+44
More About London
Current Time in the United Kingdom

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 the lighter areas are on UTC−4 (EDT).

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).

123456789101112End: Eastern Standard Time (EST) ended on Sunday, March 8, 2026 at 2:00 am02:00 local time and clocks were set one hour forward to Sunday, March 8, 2026, 3:00 am03:00 local daylight time instead. Standard time ends annually on the second Sunday of March.

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

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

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 the lighter areas are on UTC−5 (Central Daylight Time).

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).

123456789101112End: Central Standard Time (CST) ended on Sunday, March 8, 2026 at 2:00 am02:00 local time and clocks were set one hour forward to Sunday, March 8, 2026, 3:00 am03:00 local daylight time instead. Standard time ends annually on the second Sunday of March.

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

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

Mountain Daylight Time

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

Countries using this time zone: Canada, Mexico, United States

Principal Cities: The largest city in the MDT time zone is Ciudad Juárez in Mexico, with about 1.512 million people. Other major cities in this time zone include Denver, El Paso, Albuquerque, Colorado Springs.

French: HAR - Heure Avancée des Rocheuses

Spanish: MT - Zona Pacífico

Map of the areas on Mountain Daylight Time (MDT)
MDT part of the year

Today all shaded areas are on MDT.

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

123456789101112Start: Mountain Daylight Time (MDT) started on Sunday, March 8, 2026 at 2:00 am02:00 local time and clocks were set one hour forward to Sunday, March 8, 2026, 3:00 am03:00. Daylight saving starts annually on the second Sunday of March.

123456789101112End: Mountain Daylight Time (MDT) ends on Sunday, November 1, 2026 at 2:00 am02:00 local time and clocks are set one hour back to Sunday, November 1, 2026, 1:00 am01:00 local standard time instead. Daylight saving ends annually on the first Sunday of November.

See USA daylight saving time and upcoming clock changes worldwide.

MDT 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 MDT
  • S - short form of 'Sierra'
IANA/Olson: Reflects MDT time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • America/Boise
  • America/Cambridge_Bay
  • America/Ciudad_Juarez
  • America/Denver
  • America/Edmonton
  • America/Inuvik
  • America/Shiprock
  • America/Yellowknife
  • Canada/Mountain
  • MST7MDT
  • Navajo
  • US/Mountain
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

Pacific Standard Time

Offset: PST is 8 hours behind Greenwich Mean Time (GMT).

Countries using this time zone: Mexico, United States

Principal Cities: The largest city in the PST time zone is Los Angeles in the United States, with about 3.821 million people. Other major cities in this time zone include Tijuana, San Diego, Mexicali, San Jose.

French: HNP - Heure Normale du Pacifique

Spanish: PT - Tiempo del Pacífico, PT - Zona Noroeste

Map of the areas on Pacific Standard Time (PST)
PST part of the year

Today the shaded areas are on UTC−7 (PDT).

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

123456789101112End: Pacific Standard Time (PST) ended on Sunday, March 8, 2026 at 2:00 am02:00 local time and clocks were set one hour forward to Sunday, March 8, 2026, 3:00 am03:00 local daylight time instead. Standard time ends annually on the second Sunday of March.

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

See USA daylight saving time and upcoming clock changes worldwide.

PST 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 west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Uniform - Military abbreviation for PST
  • U - short form of 'Uniform'
IANA/Olson: Reflects PST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • America/Ensenada
  • America/Los_Angeles
  • America/Santa_Isabel
  • America/Tijuana
  • America/Vancouver
  • Canada/Pacific
  • Mexico/BajaNorte
  • PST8PDT
  • US/Pacific
PST Abbreviation: Several time zones share PST abbreviation and it could refer to these time zones
  • Pacific Standard Time - UTC -8
  • Pitcairn Standard Time - UTC -8
Time zones with the GMT -8 offset:
  • AKDT - Alaska Daylight Time
  • PST - Pacific Standard Time
  • PT - Pacific Time
  • PST - Pitcairn Standard Time
  • U - Uniform Time Zone