CDT to ET to London to CET Time Converter

Updating current time…
CDT
Central Daylight Time
UTC−5
12am
3am
6am
9am
12pm
3pm
6pm
9pm
ET/EDT
Eastern Time
UTC−4
1h ahead
12am
3am
6am
9am
12pm
3pm
6pm
9pm
London
United KingdomBST
UTC+1
6h ahead
12am
3am
6am
9am
12pm
3pm
6pm
9pm
London's clocks go back 1 hour on Sun, Oct 25 · BST → GMT
CEST/CET
Central European Summer Time
UTC+2
7h ahead
12am
3am
6am
9am
12pm
3pm
6pm
9pm
Central Europe is on summer time: CEST (UTC+2) until Sun, Oct 25.
Use CET all year (UTC+1)

Quick answers

Selected conversion

7:00 am07:00 CDT (UTC-5), Oct 22, 2026 = 8:00 am08:00 EDT (UTC-4), Oct 22, 2026 = 1:00 pm13:00 BST (UTC+1), Oct 22, 2026 = 2:00 pm14:00 CEST (UTC+2), Oct 22, 2026

CDT is 1 hour behind EDT. CDT is 6 hours behind London. CDT is 7 hours behind CEST.

How the time difference changes

CDT to ET

For most of the year, CDT is 1 hour behind ET. From Nov 1, 2026 to Mar 14, 2027, CST is 1 hour behind ET. Briefly around clock changes, CDT and ET have the same time or CST is 2 hours behind ET.

For most of the year, working hours of 9:00 am to 6:00 pm in CDT correspond to 10:00 am to 7:00 pm in ET. At other times of the year, working hours of 9:00 am to 6:00 pm in CST correspond to 10:00 am to 7:00 pm in ET.For most of the year, working hours of 09:00 to 18:00 in CDT correspond to 10:00 to 19:00 in ET. At other times of the year, working hours of 09:00 to 18:00 in CST correspond to 10:00 to 19:00 in ET.

CDT to London

For most of the year, CDT is 6 hours behind London. From Oct 25 to Nov 1, 2026, and from Mar 14 to Mar 28, 2027, CDT is 5 hours behind London. From Nov 1, 2026 to Mar 14, 2027, CST is 6 hours behind London.

For most of the year, working hours of 9:00 am to 6:00 pm in CDT correspond to 3:00 pm to 12:00 am (next day) in London. At other times of the year, working hours of 9:00 am to 6:00 pm in CST correspond to 3:00 pm to 12:00 am (next day) in London or working hours of 9:00 am to 6:00 pm in CDT correspond to 2:00 pm to 11:00 pm in London.For most of the year, working hours of 09:00 to 18:00 in CDT correspond to 15:00 to 00:00 (next day) in London. At other times of the year, working hours of 09:00 to 18:00 in CST correspond to 15:00 to 00:00 (next day) in London or working hours of 09:00 to 18:00 in CDT correspond to 14:00 to 23:00 in London.

CDT to CET

For most of the year, CDT is 7 hours behind CEST. From Oct 25 to Nov 1, 2026, and from Mar 14 to Mar 28, 2027, CDT is 6 hours behind CET. From Nov 1, 2026 to Mar 14, 2027, CST is 7 hours behind CET.

For most of the year, working hours of 9:00 am to 6:00 pm in CDT correspond to 4:00 pm to 1:00 am (next day) in CEST. At other times of the year, working hours of 9:00 am to 6:00 pm in CST correspond to 4:00 pm to 1:00 am (next day) in CET or working hours of 9:00 am to 6:00 pm in CDT correspond to 3:00 pm to 12:00 am (next day) in CET.For most of the year, working hours of 09:00 to 18:00 in CDT correspond to 16:00 to 01:00 (next day) in CEST. At other times of the year, working hours of 09:00 to 18:00 in CST correspond to 16:00 to 01:00 (next day) in CET or working hours of 09:00 to 18:00 in CDT correspond to 15:00 to 00:00 (next day) in CET.

Compare CDT time with ET, London, and CET time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.

Time Difference

Central Daylight Time is 1 hour behind Eastern Daylight Time. Central Daylight Time is 6 hours behind BST (British Summer Time). Central Daylight Time is 7 hours behind Central European Summer Time.
7:00 am07:00 in CDT is 8:00 am08:00 in EDT and is 1:00 pm13:00 in London, United Kingdom and is 2:00 pm14:00 in CEST

CDT to EDT call time
Best time for a conference call or a meeting is between 9am-5pm09:00-17:00 in CDT which corresponds to 10am-6pm10:00-18:00 in EDT
CDT to London call time
Best time for a conference call or a meeting is between 9am-12pm09:00-12:00 in CDT which corresponds to 3pm-6pm15:00-18:00 in London
CDT to CEST call time
Best time for a conference call or a meeting is between 9am-11am09:00-11:00 in CDT which corresponds to 4pm-6pm16:00-18:00 in CEST

7:00 am07:00 Central Daylight Time (CDT). Offset UTC -5:00 hours
8:00 am08:00 Eastern Daylight Time (EDT). Offset UTC -4:00 hours
1:00 pm13:00 BST (British Summer Time) (London, United Kingdom). Offset UTC +1:00 hour
2:00 pm14:00 Central European Summer Time (CEST). Offset UTC +2:00 hours

7:00 am07:00 CDT / 8:00 am08:00 EDT / 1:00 pm13:00 London, United Kingdom / 2:00 pm14:00 CEST

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
CDTETLondon, United KingdomCEST
1:00am6:00am7:00am
2:00am7:00am8:00am
3:00am8:00am9:00am
4:00am9:00am10:00am
5:00am10:00am11:00am
6:00am11:00am12:00pm
7:00am12:00pm1:00pm
8:00am1:00pm2:00pm
9:00am2:00pm3:00pm
10:00am3:00pm4:00pm
11:00am4:00pm5:00pm
12:00pm5:00pm6:00pm
1:00pm6:00pm7:00pm
2:00pm7:00pm8:00pm
3:00pm8:00pm9:00pm
4:00pm9:00pm10:00pm
5:00pm10:00pm11:00pm
6:00pm11:00pm12:00am next day
7:00pm12:00am next day1:00am next day
8:00pm1:00am next day2:00am next day
9:00pm2:00am next day3:00am next day
10:00pm3:00am next day4:00am next day
11:00pm4:00am next day5:00am next day
12:00am next day5:00am next day6:00am next day
01:0006:0007:00
02:0007:0008:00
03:0008:0009:00
04:0009:0010:00
05:0010:0011:00
06:0011:0012:00
07:0012:0013:00
08:0013:0014:00
09:0014:0015:00
10:0015:0016:00
11:0016:0017:00
12:0017:0018:00
13:0018:0019:00
14:0019:0020:00
15:0020:0021:00
16:0021:0022:00
17:0022:0023:00
18:0023:0000:00 next day
19:0000:00 next day01:00 next day
20:0001:00 next day02:00 next day
21:0002:00 next day03:00 next day
22:0003:00 next day04:00 next day
23:0004:00 next day05:00 next day
00:00 next day05:00 next day06:00 next day

Central Daylight Time

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

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

Principal Cities: The largest city in the CDT time zone is Chicago in the United States, with about 2.664 million people. Other major cities in this time zone include Houston, San Antonio, Dallas, Fort Worth.

French: HAC - Heure Avancée du Centre

Spanish: CT - Zona Centro

Map of the areas on Central Daylight Time (CDT)
CDT part of the year

Today all shaded areas are on CDT.

Open the world time zone map© OpenStreetMap

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

123456789101112Start: Central Daylight Time (CDT) 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: Central Daylight Time (CDT) 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.

CDT 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 CDT
  • R - short form of 'Romeo'
IANA/Olson: Reflects CDT time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • America/Chicago
  • America/Indiana/Knox
  • America/Indiana/Tell_City
  • America/Knox_IN
  • America/Matamoros
  • America/Menominee
  • America/North_Dakota/Beulah
  • America/North_Dakota/Center
  • America/North_Dakota/New_Salem
  • America/Ojinaga
  • America/Rainy_River
  • America/Rankin_Inlet
  • America/Resolute
  • America/Winnipeg
  • CST6CDT
  • Canada/Central
  • US/Central
  • US/Indiana-Starke
CDT Abbreviation: Several time zones share CDT abbreviation and it could refer to these time zones
  • Central Daylight Time - UTC -5
  • Cuba Daylight Time - UTC -4
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

Eastern Time

Eastern Time (ET) is a general term used to describe the areas that observe either the Eastern Standard Time (EST) or Eastern Daylight Time (EDT) in the United States and Canada. ET is not static but switches between EDT and EST.

ET is also used somewhat as a de facto official time for all of the United States because it encompasses 17 U.S. states in the eastern part of the contiguous United States including the capital city Washington D.C., the most populous city New York and half of the country’s population.

In the United States nationally televised programs, evening newscasts, talent and awards shows, and any other nationally televised event that airs live on American television during prime time and on the weekends are broadcast live in the Eastern Time Zone. Major professional sports leagues MLB, NBA, NFL and NHL also provide their game times in Eastern Time, even if teams are from outside of Eastern Time.

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 ET 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 Time (ET)
ET all year ET part of the year

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

Open the world time zone map© OpenStreetMap

ET 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 ET
  • R - short form of 'Romeo'
ET Abbreviation: Several time zones share ET abbreviation and it could refer to these time zones
  • Eastern Time - UTC -5
  • Tiempo del Este - UTC -5
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

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.
Clock Changes
United Kingdom daylight saving time · Clock changes worldwide

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
London time now
Current Time in the United Kingdom
UK time now

Central European Time

Offset: CET is 1 hour ahead of Greenwich Mean Time (GMT).

Countries using this time zone: Albania, Algeria, Andorra, Austria, Belgium, Bosnia and Herzegovina, Croatia, Czechia, Denmark, France, Germany, Gibraltar, Hungary, Italy, Kosovo, Liechtenstein, Luxembourg, Malta, Monaco, Montenegro, Netherlands, North Macedonia, Norway, Poland, San Marino, Serbia, Slovakia, Slovenia, Spain, Svalbard and Jan Mayen, Sweden, Switzerland, Tunisia, Vatican City

Principal Cities: The largest city in the CET time zone is Berlin in Germany, with about 3.426 million people. Other major cities in this time zone include Madrid, Algiers, Rome, Paris.

German: MEZ - Mitteleuropäische Zeit

Map of the areas on Central European Time (CET)
CET all year CET part of the year

Today the lighter areas are on UTC+2 (CEST).

Open the world time zone map© OpenStreetMap

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

123456789101112End: Central European Time (CET) ended on Sunday, March 29, 2026 at 2:00 am02:00 local time and clocks were set one hour forward to Sunday, March 29, 2026, 3:00 am03:00 local daylight time instead. Standard time ends annually on the last Sunday of March.

123456789101112Start: Central European Time (CET) starts on Sunday, October 25, 2026 at 3:00 am03:00 local time and clocks are set one hour back to Sunday, October 25, 2026, 2:00 am02:00. Standard time starts annually on the last Sunday of October.

See upcoming clock changes worldwide.

CET representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +01 - basic short
  • +0100 - basic
  • +01:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0100 - sign character (+) followed by a four digit time providing hours (01) and minutes (00) of the offset. Indicates an offset of one hour to the east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Alpha - Military abbreviation for CET
  • A - short form of 'Alpha'
IANA/Olson: Reflects CET time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Africa/Algiers
  • Africa/Ceuta
  • Africa/Tunis
  • Arctic/Longyearbyen
  • Atlantic/Jan_Mayen
  • CET
  • Europe/Amsterdam
  • Europe/Andorra
  • Europe/Belgrade
  • Europe/Berlin
  • Europe/Bratislava
  • Europe/Brussels
  • Europe/Budapest
  • Europe/Busingen
  • Europe/Copenhagen
  • Europe/Gibraltar
  • Europe/Ljubljana
  • Europe/Luxembourg
  • Europe/Madrid
  • Europe/Malta
  • Europe/Monaco
  • Europe/Oslo
  • Europe/Paris
  • Europe/Podgorica
  • Europe/Prague
  • Europe/Rome
  • Europe/San_Marino
  • Europe/Sarajevo
  • Europe/Skopje
  • Europe/Stockholm
  • Europe/Tirane
  • Europe/Vaduz
  • Europe/Vatican
  • Europe/Vienna
  • Europe/Warsaw
  • Europe/Zagreb
  • Europe/Zurich
  • MET
  • Poland
Time zones with the GMT +1 offset:
  • BST - British Summer Time
  • CET - Central European Time
  • IST - Irish Standard Time
  • WEST - Western European Summer Time
  • A - Alpha Time Zone
  • CET - Central European Time
  • MEZ - Mitteleuropäische Zeit
  • WAT - West Africa Time
  • WST - Western Sahara Summer Time
  • BMT - Biel Mean Time
EST to ISTGMT to ESTPST to ESTEST to GMTPST to GMT