EDT/EST
UTC−4
Fri, Sep 10
12am
3am
6am
9am
12pm
3pm
6pm
9pm
Eastern Time is on daylight saving time: EDT (UTC−4) until Sun, Nov 7.
KST
UTC+9
Sat, Sep 11 (next day)
13h ahead
12am
3am
6am
9am
12pm
3pm
6pm
9pm
CEST
UTC+2
Fri, Sep 10
6h ahead
12am
3am
6am
9am
12pm
3pm
6pm
9pm
PDT
UTC−7
Fri, Sep 10
3h behind
12am
3am
6am
9am
12pm
3pm
6pm
9pm
UTC
UTC+0
Fri, Sep 10
4h ahead
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Quick answers

Selected conversion

5:20 pm17:20 EDT (UTC-4), Sep 10, 2021 = 6:20 am06:20 KST (UTC+9), Sep 11, 2021 = 11:20 pm23:20 CEST (UTC+2), Sep 10, 2021 = 2:20 pm14:20 PDT (UTC-7), Sep 10, 2021 = 9:20 pm21:20 UTC (UTC+0), Sep 10, 2021

EDT is 13 hours behind KST. EDT is 6 hours behind CEST. EDT is 3 hours ahead of PDT. EDT is 4 hours behind UTC.

How the time difference changes

EST to KST

For most of the year, EDT is 13 hours behind KST. From Nov 1, 2026 to Mar 14, 2027, EST is 14 hours behind KST.

For most of the year, working hours of 9:00 am to 5:00 pm in EDT correspond to 10:00 pm to 6:00 am (next day) in KST. At other times of the year, working hours of 9:00 am to 5:00 pm in EST correspond to 11:00 pm to 7:00 am (next day) in KST.For most of the year, working hours of 09:00 to 17:00 in EDT correspond to 22:00 to 06:00 (next day) in KST. At other times of the year, working hours of 09:00 to 17:00 in EST correspond to 23:00 to 07:00 (next day) in KST.

EST to CEST

For most of the year, EDT is 6 hours behind CEST. From Oct 25 to Nov 1, 2026, and from Mar 14 to Mar 28, 2027, EDT is 5 hours behind CET. From Nov 1, 2026 to Mar 14, 2027, EST is 6 hours behind CET.

For most of the year, working hours of 9:00 am to 5:00 pm in EDT correspond to 3:00 pm to 11:00 pm in CEST. At other times of the year, working hours of 9:00 am to 5:00 pm in EST correspond to 3:00 pm to 11:00 pm in CET or working hours of 9:00 am to 5:00 pm in EDT correspond to 2:00 pm to 10:00 pm in CET.For most of the year, working hours of 09:00 to 17:00 in EDT correspond to 15:00 to 23:00 in CEST. At other times of the year, working hours of 09:00 to 17:00 in EST correspond to 15:00 to 23:00 in CET or working hours of 09:00 to 17:00 in EDT correspond to 14:00 to 22:00 in CET.

EST to PDT

For most of the year, EDT is 3 hours ahead of PDT. From Nov 1, 2026 to Mar 14, 2027, EST is 3 hours ahead of PST. Briefly around clock changes, EDT is 4 hours ahead of PST or EST is 2 hours ahead of PDT.

For most of the year, working hours of 9:00 am to 5:00 pm in EDT correspond to 6:00 am to 2:00 pm in PDT. At other times of the year, working hours of 9:00 am to 5:00 pm in EST correspond to 6:00 am to 2:00 pm in PST.For most of the year, working hours of 09:00 to 17:00 in EDT correspond to 06:00 to 14:00 in PDT. At other times of the year, working hours of 09:00 to 17:00 in EST correspond to 06:00 to 14:00 in PST.

EST to UTC

For most of the year, EDT is 4 hours behind UTC. From Nov 1, 2026 to Mar 14, 2027, EST is 5 hours behind UTC.

For most of the year, working hours of 9:00 am to 5:00 pm in EDT correspond to 1:00 pm to 9:00 pm in UTC. At other times of the year, working hours of 9:00 am to 5:00 pm in EST correspond to 2:00 pm to 10:00 pm in UTC.For most of the year, working hours of 09:00 to 17:00 in EDT correspond to 13:00 to 21:00 in UTC. At other times of the year, working hours of 09:00 to 17:00 in EST correspond to 14:00 to 22:00 in UTC.

Compare EST time with KST, CEST, PDT, and UTC time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.

Time Difference

Eastern Daylight Time is 13 hours behind Korea Standard Time. Eastern Daylight Time is 6 hours behind Central European Summer Time. Eastern Daylight Time is 3 hours ahead of Pacific Daylight Time. Eastern Daylight Time is 4 hours behind Coordinated Universal Time.
5:20 pm17:20 in EDT is 6:20 am06:20 in KST and is 11:20 pm23:20 in CEST and is 2:20 pm14:20 in PDT and is 9:20 pm21:20 in UTC

EDT to KST call time
Best time for a conference call or a meeting is between 6pm-7pm18:00-19:00 in EDT which corresponds to 7am-8am07:00-08:00 in KST (next day). Their 9am–5pm09:00–17:00 working hours do not overlap; this is a suggested compromise.
EDT to CEST call time
Best time for a conference call or a meeting is between 9am-11am09:00-11:00 in EDT which corresponds to 3pm-5pm15:00-17:00 in CEST
EDT to PDT call time
Best time for a conference call or a meeting is between 12pm-5pm12:00-17:00 in EDT which corresponds to 9am-2pm09:00-14:00 in PDT
EDT to UTC call time
Best time for a conference call or a meeting is between 9am-1pm09:00-13:00 in EDT which corresponds to 1pm-5pm13:00-17:00 in UTC

5:20 pm17:20 Eastern Daylight Time (EDT). Offset UTC -4:00 hours
6:20 am06:20 Korea Standard Time (KST). Offset UTC +9:00 hours
11:20 pm23:20 Central European Summer Time (CEST). Offset UTC +2:00 hours
2:20 pm14:20 Pacific Daylight Time (PDT). Offset UTC -7:00 hours
9:20 pm21:20 Coordinated Universal Time (UTC). Offset UTC 0:00 hours

5:20 pm17:20 EDT / 6:20 am06:20 KST / 11:20 pm23:20 CEST / 2:20 pm14:20 PDT / 9:20 pm21:20 UTC

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
EDTKSTCESTPDTUTC
1:00pm6:00am9:00pm previous day4:00am
2:00pm7:00am10:00pm previous day5:00am
3:00pm8:00am11:00pm previous day6:00am
4:00pm9:00am12:00am7:00am
5:00pm10:00am1:00am8:00am
6:00pm11:00am2:00am9:00am
7:00pm12:00pm3:00am10:00am
8:00pm1:00pm4:00am11:00am
9:00pm2:00pm5:00am12:00pm
10:00pm3:00pm6:00am1:00pm
11:00pm4:00pm7:00am2:00pm
12:00am next day5:00pm8:00am3:00pm
1:00am next day6:00pm9:00am4:00pm
2:00am next day7:00pm10:00am5:00pm
3:00am next day8:00pm11:00am6:00pm
4:00am next day9:00pm12:00pm7:00pm
5:00am next day10:00pm1:00pm8:00pm
6:00am next day11:00pm2:00pm9:00pm
7:00am next day12:00am next day3:00pm10:00pm
8:00am next day1:00am next day4:00pm11:00pm
9:00am next day2:00am next day5:00pm12:00am next day
10:00am next day3:00am next day6:00pm1:00am next day
11:00am next day4:00am next day7:00pm2:00am next day
12:00pm next day5:00am next day8:00pm3:00am next day
13:0006:0021:00 previous day04:00
14:0007:0022:00 previous day05:00
15:0008:0023:00 previous day06:00
16:0009:0000:0007:00
17:0010:0001:0008:00
18:0011:0002:0009:00
19:0012:0003:0010:00
20:0013:0004:0011:00
21:0014:0005:0012:00
22:0015:0006:0013:00
23:0016:0007:0014:00
00:00 next day17:0008:0015:00
01:00 next day18:0009:0016:00
02:00 next day19:0010:0017:00
03:00 next day20:0011:0018:00
04:00 next day21:0012:0019:00
05:00 next day22:0013:0020:00
06:00 next day23:0014:0021:00
07:00 next day00:00 next day15:0022:00
08:00 next day01:00 next day16:0023:00
09:00 next day02:00 next day17:0000:00 next day
10:00 next day03:00 next day18:0001:00 next day
11:00 next day04:00 next day19:0002:00 next day
12:00 next day05:00 next day20:0003:00 next day

Eastern Standard Time

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

Countries using this time zone: Bahamas, Canada, Haiti, Jamaica, Cayman Islands, Mexico, Panama, Turks & Caicos Is, 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

On September 10, 2021 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 14, 2021 at 2:00 am02:00 local time and clocks were set one hour forward to Sunday, March 14, 2021, 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 7, 2021 at 2:00 am02:00 local time and clocks are set one hour back to Sunday, November 7, 2021, 1:00 am01:00. Standard time starts annually on the first Sunday of November.

See 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

Korea Standard Time

Offset: KST is 9 hours ahead of Greenwich Mean Time (GMT).

Countries using this time zone: Korea (North), Korea (South)

Principal Cities: The largest city in the KST time zone is Seoul in South Korea, with about 10.349 million people. Other major cities in this time zone include Busan, Pyongyang, Incheon, Daegu.

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

KST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +09 - basic short
  • +0900 - basic
  • +09:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0900 - sign character (+) followed by a four digit time providing hours (09) and minutes (00) of the offset. Indicates an offset of nine hours to the east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • India - Military abbreviation for KST
  • I - short form of 'India'
IANA/Olson: Reflects KST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Asia/Pyongyang
  • Asia/Seoul
  • ROK
KST Abbreviation: Several time zones share KST abbreviation and it could refer to these time zones
  • Korea Standard Time - UTC +9
  • Pyongyang Time - UTC +8:30
Time zones with the GMT +9 offset:
  • AWDT - Australian Western Daylight Time
  • CHOST - Choibalsan Summer Time
  • I - India Time Zone
  • IRKST - Irkutsk Summer Time
  • JST - Japan Standard Time
  • KST - Korea Standard Time
  • PWT - Palau Time
  • TLT - East Timor Time
  • ULAST - Ulaanbaatar Summer Time
  • WIT - Eastern Indonesian Time
  • YAKT - Yakutsk Time

Central European Summer Time

Offset: CEST is 2 hours ahead of Greenwich Mean Time (GMT).

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

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

German: MESZ - Mitteleuropäische Sommerzeit

Map of the areas on Central European Summer Time (CEST)
CEST part of the year

On September 10, 2021 all shaded areas are on CEST.

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

123456789101112Start: Central European Summer Time (CEST) started on Sunday, March 28, 2021 at 2:00 am02:00 local time and clocks were set one hour forward to Sunday, March 28, 2021, 3:00 am03:00. Daylight saving starts annually on the last Sunday of March.

123456789101112End: Central European Summer Time (CEST) ends on Sunday, October 31, 2021 at 3:00 am03:00 local time and clocks are set one hour back to Sunday, October 31, 2021, 2:00 am02:00 local standard time instead. Daylight saving ends annually on the last Sunday of October.

See upcoming clock changes worldwide.

CEST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +02 - basic short
  • +0200 - basic
  • +02:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0200 - sign character (+) followed by a four digit time providing hours (02) and minutes (00) of the offset. Indicates an offset of two hours to the east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Bravo - Military abbreviation for CEST
  • B - short form of 'Bravo'
IANA/Olson: Reflects CEST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Africa/Ceuta
  • 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 +2 offset:
  • CEST - Central European Summer Time
  • EET - Eastern European Time
  • MESZ - Mitteleuropäische Sommerzeit
  • B - Bravo Time Zone
  • CAT - Central Africa Time
  • IST - Israel Standard Time
  • SAST - South Africa Standard Time
  • WAST - West Africa Summer Time

Pacific Daylight Time

Offset: PDT is 7 hours behind Greenwich Mean Time (GMT).

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

Principal Cities: The largest city in the PDT 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: HAP - Heure Avancée du Pacifique

Spanish: PT - Zona Noroeste

Map of the areas on Pacific Daylight Time (PDT)
PDT part of the year

On September 10, 2021 all shaded areas are on PDT.

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

123456789101112Start: Pacific Daylight Time (PDT) started on Sunday, March 14, 2021 at 2:00 am02:00 local time and clocks were set one hour forward to Sunday, March 14, 2021, 3:00 am03:00. Daylight saving starts annually on the second Sunday of March.

123456789101112End: Pacific Daylight Time (PDT) ends on Sunday, November 7, 2021 at 2:00 am02:00 local time and clocks are set one hour back to Sunday, November 7, 2021, 1:00 am01:00 local standard time instead. Daylight saving ends annually on the first Sunday of November.

See upcoming clock changes worldwide.

PDT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -07 - basic short
  • -0700 - basic
  • -07:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -0700 - sign character (-) followed by a four digit time providing hours (07) and minutes (00) of the offset. Indicates an offset of seven hours to the west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Tango - Military abbreviation for PDT
  • T - short form of 'Tango'
IANA/Olson: Reflects PDT 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
Time zones with the GMT -7 offset:
  • MST - Mountain Standard Time
  • PDT - Pacific Daylight Time
  • YST - Yukon Standard Time
  • T - Tango Time Zone

Coordinated Universal Time

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

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

On September 10, 2021 some shaded areas are on UTC+1 (British Summer Time, Irish Standard Time, WEST).

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