EDT to GMT to Atlanta to Sydney Time Converter

Updating current time…
EDT
Eastern Daylight Time
UTC−4
12am
3am
6am
9am
12pm
3pm
6pm
9pm
GMT
Greenwich Mean Time
UTC+0
4h ahead
12am
3am
6am
9am
12pm
3pm
6pm
9pm
The United Kingdom is on summer time: BST (UTC+1) until Sun, Oct 25.

Iceland and Ghana stay on GMT (UTC+0).

Iceland, Ghana · GMT all year (UTC+0)United Kingdom · BST (UTC+1)
Atlanta
Georgia, USAEDT
UTC−4
same time
12am
3am
6am
9am
12pm
3pm
6pm
9pm
Atlanta's clocks go back 1 hour on Sun, Nov 1 · EDT → EST
Sydney
AustraliaAEDT
UTC+11
15h ahead
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Quick answers

Selected conversion

8:00 am08:00 EDT (UTC-4), Oct 19, 2026 = 12:00 pm12:00 GMT (UTC+0), Oct 19, 2026 = 8:00 am08:00 EDT (UTC-4), Oct 19, 2026 = 11:00 pm23:00 AEDT (UTC+11), Oct 19, 2026

EDT is 4 hours behind GMT. EDT and Atlanta have the same local time. EDT is 15 hours behind Sydney.

How the time difference changes

EDT to GMT

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

For most of the year, working hours of 9:00 am to 6:00 pm in EDT correspond to 1:00 pm to 10:00 pm in GMT. At other times of the year, working hours of 9:00 am to 6:00 pm in EST correspond to 2:00 pm to 11:00 pm in GMT.For most of the year, working hours of 09:00 to 18:00 in EDT correspond to 13:00 to 22:00 in GMT. At other times of the year, working hours of 09:00 to 18:00 in EST correspond to 14:00 to 23:00 in GMT.

EDT to Atlanta

For most of the year, EDT and Atlanta have the same time. From Nov 1, 2026 to Mar 14, 2027, EST and Atlanta have the same time.

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

EDT to Sydney

Depending on seasonal clock changes, EDT is 14 hours behind Sydney, EDT is 15 hours behind Sydney, or EST is 16 hours behind Sydney.

Depending on seasonal clock changes, working hours of 9:00 am to 6:00 pm in EDT correspond to 11:00 pm to 8:00 am (next day) in Sydney, working hours of 9:00 am to 6:00 pm in EDT correspond to 12:00 am (next day) to 9:00 am (next day) in Sydney, or working hours of 9:00 am to 6:00 pm in EST correspond to 1:00 am (next day) to 10:00 am (next day) in Sydney.Depending on seasonal clock changes, working hours of 09:00 to 18:00 in EDT correspond to 23:00 to 08:00 (next day) in Sydney, working hours of 09:00 to 18:00 in EDT correspond to 00:00 (next day) to 09:00 (next day) in Sydney, or working hours of 09:00 to 18:00 in EST correspond to 01:00 (next day) to 10:00 (next day) in Sydney.

Compare EDT time with GMT, Atlanta, and Sydney time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.

Time Difference

Eastern Daylight Time is 4 hours behind Greenwich Mean Time. Eastern Daylight Time and EDT (Eastern Daylight Time) have the same local time. Eastern Daylight Time is 15 hours behind AEDT (Australian Eastern Daylight Time).
8:00 am08:00 in EDT is 12:00 pm12:00 in GMT and is 8:00 am08:00 in Atlanta, GA, USA and is 11:00 pm23:00 in Sydney, Australia

EDT to GMT call time
Best time for a conference call or a meeting is between 9am-2pm09:00-14:00 in EDT which corresponds to 1pm-6pm13:00-18:00 in GMT
EDT to Atlanta call time
Best time for a conference call or a meeting is between 9am-6pm09:00-18:00 in EDT which corresponds to 9am-6pm09:00-18:00 in Atlanta
EDT to Sydney call time
Best time for a conference call or a meeting is between 5:30pm-6:30pm17:30-18:30 in EDT which corresponds to 8:30am-9:30am08:30-09:30 in Sydney (next day). Their 9am–6pm09:00–18:00 working hours do not overlap; this is a suggested compromise.

8:00 am08:00 Eastern Daylight Time (EDT). Offset UTC -4:00 hours
12:00 pm12:00 Greenwich Mean Time (GMT). Offset UTC 0:00 hours
8:00 am08:00 EDT (Eastern Daylight Time) (Atlanta, GA, USA). Offset UTC -4:00 hours
11:00 pm23:00 AEDT (Australian Eastern Daylight Time) (Sydney, Australia). Offset UTC +11:00 hours

8:00 am08:00 EDT / 12:00 pm12:00 GMT / 8:00 am08:00 Atlanta, GA, USA / 11:00 pm23:00 Sydney, Australia

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
EDTGMTAtlanta, GA, USASydney, Australia
4:00am12:00am3:00pm
5:00am1:00am4:00pm
6:00am2:00am5:00pm
7:00am3:00am6:00pm
8:00am4:00am7:00pm
9:00am5:00am8:00pm
10:00am6:00am9:00pm
11:00am7:00am10:00pm
12:00pm8:00am11:00pm
1:00pm9:00am12:00am next day
2:00pm10:00am1:00am next day
3:00pm11:00am2:00am next day
4:00pm12:00pm3:00am next day
5:00pm1:00pm4:00am next day
6:00pm2:00pm5:00am next day
7:00pm3:00pm6:00am next day
8:00pm4:00pm7:00am next day
9:00pm5:00pm8:00am next day
10:00pm6:00pm9:00am next day
11:00pm7:00pm10:00am next day
12:00am next day8:00pm11:00am next day
1:00am next day9:00pm12:00pm next day
2:00am next day10:00pm1:00pm next day
3:00am next day11:00pm2:00pm next day
04:0000:0015:00
05:0001:0016:00
06:0002:0017:00
07:0003:0018:00
08:0004:0019:00
09:0005:0020:00
10:0006:0021:00
11:0007:0022:00
12:0008:0023:00
13:0009:0000:00 next day
14:0010:0001:00 next day
15:0011:0002:00 next day
16:0012:0003:00 next day
17:0013:0004:00 next day
18:0014:0005:00 next day
19:0015:0006:00 next day
20:0016:0007:00 next day
21:0017:0008:00 next day
22:0018:0009:00 next day
23:0019:0010:00 next day
00:00 next day20:0011:00 next day
01:00 next day21:0012:00 next day
02:00 next day22:0013:00 next day
03:00 next day23:0014:00 next day

Eastern Daylight Time

Offset: EDT is 4 hours behind Greenwich Mean Time (GMT).

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

Principal Cities: The largest city in the EDT 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: HAE - Heure Avancée de l'Est

Spanish: EDT - Tiempo de verano del Este, ET - Zona Sureste

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

Today all shaded areas are on EDT.

Open the world time zone map© OpenStreetMap

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

123456789101112Start: Eastern Daylight Time (EDT) 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: Eastern Daylight Time (EDT) 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.

EDT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -04 - basic short
  • -0400 - basic
  • -04:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -0400 - sign character (-) followed by a four digit time providing hours (04) and minutes (00) of the offset. Indicates an offset of four hours to the west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Quebec - Military abbreviation for EDT
  • Q - short form of 'Quebec'
IANA/Olson: Reflects EDT time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • 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/Kentucky/Louisville
  • America/Kentucky/Monticello
  • America/Louisville
  • America/Montreal
  • America/Nassau
  • America/New_York
  • America/Nipigon
  • America/Pangnirtung
  • America/Port-au-Prince
  • America/Thunder_Bay
  • America/Toronto
  • Canada/Eastern
  • EST5EDT
  • US/East-Indiana
  • US/Eastern
  • US/Michigan
Time zones with the GMT -4 offset:
  • AST - Atlantic Standard Time
  • EDT - Eastern Daylight Time
  • AMT - Amazon Time
  • BOT - Bolivia Time
  • CDT - Cuba Daylight Time
  • CLT - Chile Standard Time
  • GYT - Guyana Time
  • HLV - Hora Legal de Venezuela
  • Q - Quebec Time Zone
  • VET - Venezuelan Standard Time

Greenwich Mean Time

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

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

Principal Cities: The largest city in the GMT 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.

Greenwich Mean Time (GMT) originally referred to the mean solar time at the Royal Observatory in Greenwich, London. It is now often used to refer to Coordinated Universal Time (UTC) when this is viewed as a time zone, and in casual use the two are the same. In the military, GMT is known as Zulu time. Greenwich Mean Time was the same as Universal Time (UT), a standard astronomical concept used in many technical fields, until the introduction of UTC in 1972.

Map of the areas on Greenwich Mean Time (GMT)
GMT all year GMT part of the year

Today the lighter areas are on UTC+1 (British Summer Time, Irish Standard Time).

Open the world time zone map© OpenStreetMap

GMT 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 GMT
  • Z - short form of 'Zulu'
IANA/Olson: Reflects GMT time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Africa/Abidjan
  • Africa/Accra
  • Africa/Bamako
  • Africa/Banjul
  • Africa/Bissau
  • Africa/Conakry
  • Africa/Dakar
  • Africa/Freetown
  • Africa/Lome
  • Africa/Monrovia
  • Africa/Nouakchott
  • Africa/Ouagadougou
  • Africa/Sao_Tome
  • Africa/Timbuktu
  • America/Danmarkshavn
  • Atlantic/Reykjavik
  • Atlantic/St_Helena
  • Eire
  • Etc/GMT
  • Etc/GMT+0
  • Etc/GMT-0
  • Etc/GMT0
  • Etc/Greenwich
  • Europe/Belfast
  • Europe/Dublin
  • Europe/Guernsey
  • Europe/Isle_of_Man
  • Europe/Jersey
  • Europe/London
  • GB
  • GB-Eire
  • GMT
  • GMT+0
  • GMT-0
  • GMT0
  • Greenwich
  • Iceland
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

Atlanta Time Zone and Facts

Time Zone

Abbreviation / Offset
EDT – Eastern Daylight Time, UTC-4 (now, daylight saving time)
EST – Eastern Standard Time, UTC-5 (standard time)
Daylight Saving Time Ends
123456789101112Sunday, November 1, 2026 at 2:00 amSunday, November 1, 2026 at 02:00: clocks go back 1 hour to 1:00 am01:00 (EST). DST ends on the 1st Sunday of November each year. Also called Fall Back or Winter Time.
Daylight Saving Time Starts
123456789101112Sunday, March 14, 2027 at 2:00 amSunday, March 14, 2027 at 02:00: clocks go forward 1 hour to 3:00 am03:00 (EDT). DST starts on the 2nd Sunday of March each year. Also called Spring Forward or Summer Time.
Clock Changes
USA daylight saving time · Clock changes worldwide

Atlanta Facts

Country
USA
State
Georgia
Alternative Names
ATL, Atlant, Atlanta, Atlantae, Atlonta, Canebrake, Marthasdale, Marthasville, Standing Peachtree, Terminus, White Hall, Whitehall, aeteullaenta, arr‌lanra nagaram, atalanta, ateullaenta, ateullanta, atlanta, atoranta, atʼlantʼa, etalanta, etlanta, ya te lan da, Ατλάντα, Атлантæ, Атланта, Ատլանտա, אטלאנטא, אטלנטה, آتلانتا, أتلانتا, ئەتڵانتا, اٹلانٹا, اٹلانٹا، جارجیا, अटलांटा, अटलान्टा, एट्लान्टा, एत्लान्ता, আটলান্টা, એટલાન્ટા, அட்லான்டா, అట్లాంటా, ಅಟ್ಲಾಂಟಾ, അറ്റ്‌ലാന്റാ നഗരം, แอตแลนตา, ཨ་ཊི་ལཱན་ཊཱ།, အတ္တလန္တာမြို့, ატლანტა, አትላንታ, アトランタ, 亚特兰大, 亞特蘭大, 아틀란타, 아틀랜타, 애틀랜타
Population
510,823
Currency
Dollar (USD)
Geographic Coordinates
33° 44' N Latitude / 84° 23' W Longitude
International Dialing Code
+1
More About Atlanta
Atlanta local time and city facts

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.
Clock Changes
Australia daylight saving time · Clock changes worldwide

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
Sydney time now
EST to ISTGMT to ESTPST to ESTEST to GMTPST to GMT