Updating current time…
MauritaniaGMT
UTC+0
Sun, Oct 18
12am
3am
6am
9am
12pm
3pm
6pm
9pm
ACDT
UTC+10:30
Mon, Oct 19 (next day)
10h 30m ahead
12am
3am
6am
9am
12pm
3pm
6pm
9pm
Pennsylvania, USAEDT
UTC−4
Sun, Oct 18
4h behind
12am
3am
6am
9am
12pm
3pm
6pm
9pm
Pittsburgh's clocks go back 1 hour on Sun, Nov 1 · EDT → EST
DenmarkCEST
UTC+2
Sun, Oct 18
2h ahead
12am
3am
6am
9am
12pm
3pm
6pm
9pm
Copenhagen's clocks go back 1 hour on Sun, Oct 25 · CEST → CET
GMT
UTC+0
Sun, Oct 18
same time
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).

CanadaEDT
UTC−4
Sun, Oct 18
4h behind
12am
3am
6am
9am
12pm
3pm
6pm
9pm
Toronto's clocks go back 1 hour on Sun, Nov 1 · EDT → EST

Quick answers

Selected conversion

4:45 pm16:45 GMT (UTC+0), Oct 18, 2026 = 3:15 am03:15 ACDT (UTC+10:30), Oct 19, 2026 = 12:45 pm12:45 EDT (UTC-4), Oct 18, 2026 = 6:45 pm18:45 CEST (UTC+2), Oct 18, 2026 = 4:45 pm16:45 GMT (UTC+0), Oct 18, 2026 = 12:45 pm12:45 EDT (UTC-4), Oct 18, 2026

Nouakchott is 10 hours and 30 minutes behind ACDT. Nouakchott is 4 hours ahead of Pittsburgh. Nouakchott is 2 hours behind Copenhagen. Nouakchott and GMT have the same local time. Nouakchott is 4 hours ahead of Toronto.

How the time difference changes

Nouakchott to ACDT

Depending on seasonal clock changes, Nouakchott is 9 hours and 30 minutes behind ACST or Nouakchott is 10 hours and 30 minutes behind ACDT.

Depending on seasonal clock changes, working hours of 9:00 am to 6:00 pm in Nouakchott correspond to 6:30 pm to 3:30 am (next day) in ACST or working hours of 9:00 am to 6:00 pm in Nouakchott correspond to 7:30 pm to 4:30 am (next day) in ACDT.Depending on seasonal clock changes, working hours of 09:00 to 18:00 in Nouakchott correspond to 18:30 to 03:30 (next day) in ACST or working hours of 09:00 to 18:00 in Nouakchott correspond to 19:30 to 04:30 (next day) in ACDT.

Nouakchott to Pittsburgh

For most of the year, Nouakchott is 4 hours ahead of Pittsburgh. From Nov 1, 2026 to Mar 14, 2027, Nouakchott is 5 hours ahead of Pittsburgh.

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

Nouakchott to Copenhagen

For most of the year, Nouakchott is 2 hours behind Copenhagen. From Oct 25, 2026 to Mar 28, 2027, Nouakchott is 1 hour behind Copenhagen.

For most of the year, working hours of 9:00 am to 6:00 pm in Nouakchott correspond to 11:00 am to 8:00 pm in Copenhagen. At other times of the year, working hours of 9:00 am to 6:00 pm in Nouakchott correspond to 10:00 am to 7:00 pm in Copenhagen.For most of the year, working hours of 09:00 to 18:00 in Nouakchott correspond to 11:00 to 20:00 in Copenhagen. At other times of the year, working hours of 09:00 to 18:00 in Nouakchott correspond to 10:00 to 19:00 in Copenhagen.

Nouakchott to GMT

Nouakchott and GMT have the same time year-round.

Working hours of 9:00 am to 6:00 pm in Nouakchott correspond to 9:00 am to 6:00 pm in GMT.Working hours of 09:00 to 18:00 in Nouakchott correspond to 09:00 to 18:00 in GMT.

Nouakchott to Toronto

For most of the year, Nouakchott is 4 hours ahead of Toronto. From Nov 1, 2026 to Mar 14, 2027, Nouakchott is 5 hours ahead of Toronto.

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

Compare Nouakchott time with ACDT, Pittsburgh, Copenhagen, GMT, and Toronto time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.

Time Difference

GMT (Greenwich Mean Time) is 10 hours and 30 minutes behind Australian Central Daylight Time. GMT (Greenwich Mean Time) is 4 hours ahead of EDT (Eastern Daylight Time). GMT (Greenwich Mean Time) is 2 hours behind CEST (Central European Summer Time). GMT (Greenwich Mean Time) and Greenwich Mean Time have the same local time. GMT (Greenwich Mean Time) is 4 hours ahead of EDT (Eastern Daylight Time).
4:45 pm16:45 in Nouakchott, Mauritania is 3:15 am03:15 in ACDT and is 12:45 pm12:45 in Pittsburgh, PA, USA and is 6:45 pm18:45 in Copenhagen, Denmark and is 4:45 pm16:45 in GMT and is 12:45 pm12:45 in Toronto, Canada

Nouakchott to ACDT call time
Best time for a conference call or a meeting is between 8am-9am08:00-09:00 in Nouakchott which corresponds to 6:30pm-7:30pm18:30-19:30 in ACDT. Their 9am–6pm09:00–18:00 working hours do not overlap; this is a suggested compromise.
Nouakchott to Pittsburgh call time
Best time for a conference call or a meeting is between 1pm-6pm13:00-18:00 in Nouakchott which corresponds to 9am-2pm09:00-14:00 in Pittsburgh
Nouakchott to Copenhagen call time
Best time for a conference call or a meeting is between 9am-4pm09:00-16:00 in Nouakchott which corresponds to 11am-6pm11:00-18:00 in Copenhagen
Nouakchott to GMT call time
Best time for a conference call or a meeting is between 9am-6pm09:00-18:00 in Nouakchott which corresponds to 9am-6pm09:00-18:00 in GMT
Nouakchott to Toronto call time
Best time for a conference call or a meeting is between 1pm-6pm13:00-18:00 in Nouakchott which corresponds to 9am-2pm09:00-14:00 in Toronto

4:45 pm16:45 GMT (Greenwich Mean Time) (Nouakchott, Mauritania). Offset UTC 0:00 hours
3:15 am03:15 Australian Central Daylight Time (ACDT). Offset UTC +10:30 hours
12:45 pm12:45 EDT (Eastern Daylight Time) (Pittsburgh, PA, USA). Offset UTC -4:00 hours
6:45 pm18:45 CEST (Central European Summer Time) (Copenhagen, Denmark). Offset UTC +2:00 hours
4:45 pm16:45 Greenwich Mean Time (GMT). Offset UTC 0:00 hours
12:45 pm12:45 EDT (Eastern Daylight Time) (Toronto, Canada). Offset UTC -4:00 hours

4:45 pm16:45 Nouakchott, Mauritania / 3:15 am03:15 ACDT / 12:45 pm12:45 Pittsburgh, PA, USA / 6:45 pm18:45 Copenhagen, Denmark / 4:45 pm16:45 GMT / 12:45 pm12:45 Toronto, Canada

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
Nouakchott, MauritaniaACDTPittsburgh, PA, USACopenhagen, DenmarkGMTToronto, Canada
10:30am8:00pm previous day2:00am12:00am8:00pm previous day
11:30am9:00pm previous day3:00am1:00am9:00pm previous day
12:30pm10:00pm previous day4:00am2:00am10:00pm previous day
1:30pm11:00pm previous day5:00am3:00am11:00pm previous day
2:30pm12:00am6:00am4:00am12:00am
3:30pm1:00am7:00am5:00am1:00am
4:30pm2:00am8:00am6:00am2:00am
5:30pm3:00am9:00am7:00am3:00am
6:30pm4:00am10:00am8:00am4:00am
7:30pm5:00am11:00am9:00am5:00am
8:30pm6:00am12:00pm10:00am6:00am
9:30pm7:00am1:00pm11:00am7:00am
10:30pm8:00am2:00pm12:00pm8:00am
11:30pm9:00am3:00pm1:00pm9:00am
12:30am next day10:00am4:00pm2:00pm10:00am
1:30am next day11:00am5:00pm3:00pm11:00am
2:30am next day12:00pm6:00pm4:00pm12:00pm
3:30am next day1:00pm7:00pm5:00pm1:00pm
4:30am next day2:00pm8:00pm6:00pm2:00pm
5:30am next day3:00pm9:00pm7:00pm3:00pm
6:30am next day4:00pm10:00pm8:00pm4:00pm
7:30am next day5:00pm11:00pm9:00pm5:00pm
8:30am next day6:00pm12:00am next day10:00pm6:00pm
9:30am next day7:00pm1:00am next day11:00pm7:00pm
10:3020:00 previous day02:0000:0020:00 previous day
11:3021:00 previous day03:0001:0021:00 previous day
12:3022:00 previous day04:0002:0022:00 previous day
13:3023:00 previous day05:0003:0023:00 previous day
14:3000:0006:0004:0000:00
15:3001:0007:0005:0001:00
16:3002:0008:0006:0002:00
17:3003:0009:0007:0003:00
18:3004:0010:0008:0004:00
19:3005:0011:0009:0005:00
20:3006:0012:0010:0006:00
21:3007:0013:0011:0007:00
22:3008:0014:0012:0008:00
23:3009:0015:0013:0009:00
00:30 next day10:0016:0014:0010:00
01:30 next day11:0017:0015:0011:00
02:30 next day12:0018:0016:0012:00
03:30 next day13:0019:0017:0013:00
04:30 next day14:0020:0018:0014:00
05:30 next day15:0021:0019:0015:00
06:30 next day16:0022:0020:0016:00
07:30 next day17:0023:0021:0017:00
08:30 next day18:0000:00 next day22:0018:00
09:30 next day19:0001:00 next day23:0019:00

Nouakchott Time Zone and Facts

Time Zone

Abbreviation / Offset
GMT – Greenwich Mean Time, UTC+0 (no daylight saving time)

Nouakchott Facts

Country
Mauritania
Alternative Names
NKC, Naevakjut, Nawakshot, Nawakszut, Nouakchat, Nouakchot, Nouakchott, Nouaksot, Nouaxot, Nuakchot, Nuakshot, Nuaksjott, Nuaksot, Nuaksota, Nuaksotas, Nuaksoto, Nuaksott, Nuakxot, Nuakŝoto, Nuakşot, Nuakšot, Nuakšota, Nuakšotas, Nuakšott, Nwaqcut, Nwaqcuṭ, Nävakjut, Núaksjott, huo suo, navakasuta, nu wa ke xiao te, nu'akacota, nu'oyakasuta, nuagsyoteu, nuakushotto, nuvakcut, nwakshwt, Νουακσότ, Νουαξότ, Нуакшот, Նուակշոտ, נואקשוט, نواكشوط, نواکشوت, نواکشوط, نواکشۆت, نوواکوٹ, नवाकसुत, নুওয়াকশুত, ਨੁਆਕਚੋਤ, நுவாக்சூத், นูแอกชอต, ནའུ་ཀ་ཅོ་ཊི།, ნუაქშოტი, ኑዋክሾት, ヌアクショット, 努瓦克肖特, 或索, 누악쇼트
Population
1,184,530
Currency
Ouguiya (MRU)
Geographic Coordinates
18° 05' N Latitude / 15° 58' W Longitude
International Dialing Code
+222

Australian Central Daylight Time

Offset: ACDT is 10 hours and 30 minutes ahead of Greenwich Mean Time (GMT).

Countries using this time zone: Australia

Principal Cities: The largest city in the ACDT time zone is Adelaide in Australia, with about 1.469 million people. Other major cities in this time zone include Mount Gambier, Mount Barker, Whyalla, Gawler.

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

Today all shaded areas are on ACDT.

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

123456789101112Start: Australian Central Daylight Time (ACDT) 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 Central Daylight Time (ACDT) 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.

ACDT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +1030 - basic
  • +10:30 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +1030 - sign character (+) followed by a four digit time providing hours (10) and minutes (30) of the offset. Indicates an offset of ten hours and thirty minutes to the east of the zero meridian.
IANA/Olson: Reflects ACDT time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Australia/Adelaide
  • Australia/Broken_Hill
  • Australia/South
  • Australia/Yancowinna
Time zones with the GMT +10:30 offset:
  • ACDT - Australian Central Daylight Time
  • LHST - Lord Howe Standard Time

Pittsburgh 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.

Pittsburgh Facts

Country
USA
State
Pennsylvania
Alternative Names
Allegheny, Fort Dunmore, Fort Duquesne, Fort Pitt, Fort Trent, PIT, Pitsbrg, Pitsburg, Pitsburga, Pitsburgas, Pitsburgo, Pitsmpernk, Pitts-Bourg, Pittsbarig, Pittsburg, Pittsburgh, Pittsburgum, Pittsburq, The Manor of Pittsburgh, bytsbrgh, phitts beirk, pi ci bao, pi zi bao, picheubeogeu, pitasabaraga, pitsabarga, pitspark, pits‌barg, pittsubagu, pytsbrg pnsylwanya, pytsbwrg, Πίτσμπεργκ, Питсбург, Питсбърг, Питтсбург, Пітсбург, Піттсбург, פיטסבורג, بيتسبرغ, پٹس برگ, پٹسبرگ, پیتسبرگ، پنسیلوانیا, पिट्सबर्ग, ਪਿਟਸਬਰਗ, பிட்ஸ்பர்க், పిట్స్‌బర్గ్, ಪಿಟ್ಸ್‌ಬರ್ಗ್, พิตต์สเบิร์ก, ピッツバーグ, 匹兹堡, 匹茲堡, 피츠버그
Population
304,391
Currency
Dollar (USD)
Geographic Coordinates
40° 26' N Latitude / 79° 59' W Longitude
International Dialing Code
+1

Copenhagen Time Zone and Facts

Time Zone

Abbreviation / Offset
CEST – Central European Summer Time, UTC+2 (now, daylight saving time)
CET – Central European Time, UTC+1 (standard time)
Daylight Saving Time Ends
123456789101112Sunday, October 25, 2026 at 3:00 amSunday, October 25, 2026 at 03:00: clocks go back 1 hour to 2:00 am02:00 (CET). 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 2:00 amSunday, March 28, 2027 at 02:00: clocks go forward 1 hour to 3:00 am03:00 (CEST). DST starts on the last Sunday of March each year. Also called Spring Forward or Summer Time.

Copenhagen Facts

Country
Denmark
Alternative Names
CPH, Cobanhavan, Copenaga, Copenaghen, Copenaguen, Copenhaga, Copenhagen, Copenhague, Copenhaguen, Copenhaguen - Kobenhavn, Copenhaguen - København, Cóbanhávan, Hafnia, Kapehngagen, Kaupmannahoefn, Kaupmannahöfn, Keypmannahavn, Kjobenhavn, Kjopenhamn, Kjøpenhamn, Kobenhamman, Kobenhaven, Kobenhavn, Kodan, Kodaň, Koebenhavn, Koeoepenhamina, Koepenhamn, Kopenage, Kopenchage, Kopengagen, Kopenhaagen, Kopenhag, Kopenhaga, Kopenhage, Kopenhagen, Kopenhagena, Kopenhago, Kopenhāgena, Kopenkhagen, Koppenhaga, Koppenhága, Kòpenhaga, Köbenhavn, Köpenhamn, Kööpenhamina, København, Københámman, ge ben ha gen, khopenheken, kopanahagana, kopenahagena, kopenahegena, kopenhagen, kwbnhaghn, kwpnhgn, qwpnhgn, Κοπεγχάγη, Капэнгаген, Копенгаген, Копенхаген, Կոպենհագեն, קופנהאגן, קופנהגן, كوبنهاغن, كوپېنھاگېن, ܟܘܦܢܗܓܢ, कोपनहागन, কোপেনহাগেন, কোপেনহেগেন, โคเปนเฮเกน, ཀའོ་པེན་ཧ་ཀེན, კოპენჰაგენი, ኮፐንሀገን, ኮፕንሀግ, コペンハーゲン, 哥本哈根, 코펜하겐
Population
1,153,615
Currency
Krone (DKK)
Geographic Coordinates
55° 40' N Latitude / 12° 33' E Longitude
International Dialing Code
+45

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).

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

Toronto 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.

Toronto Facts

Country
Canada
Alternative Names
Taronta, Torontas, Toronto, Torontu, Torontum, Torontó, YTO, duo lun duo, roranro, taronto, teareantea, tho rxn to, tolonto, toramto, toranto, toronto, twrntw, twrwntw, Τορόντο, Таронта, Торонто, Տորոնտո, טאראנטא, טורונטו, تورنتو, تورونتو, ٹورانٹو, ٹورنٹو, टोरण्टो, टोरन्टो, टोराँटो, तोरन्तो, টরোন্টো, ਟੋਰਾਂਟੋ, ரொறன்ரோ, టొరంటో, ಟೊರಾಂಟೋ, ടോറോണ്ടോ, โทรอนโต, တိုရွန်တိုမြို့, ტორონტო, トロント, 多伦多, 多倫多, 토론토
Population
2,794,356
Currency
Dollar (CAD)
Geographic Coordinates
43° 42' N Latitude / 79° 24' W Longitude
International Dialing Code
+1