Updating current time…
SGT
Singapore Time
GMT +8
Tue, Oct 6
12am
3am
6am
9am
12pm
3pm
6pm
9pm
Japan
JST
Tue, Oct 6
12am
3am
6am
9am
12pm
3pm
6pm
9pm
ACDT
Australian Central Daylight Time
GMT +10:30
Tue, Oct 6
12am
3am
6am
9am
12pm
3pm
6pm
9pm
New Zealand
NZDT
Tue, Oct 6
12am
3am
6am
9am
12pm
3pm
6pm
9pm
CDT
Central Daylight Time
GMT -5
Tue, Oct 6
12am
3am
6am
9am
12pm
3pm
6pm
9pm
United Kingdom
BST
Tue, Oct 6
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Quick answers

Selected conversion

5:00 pm17:00 SGT (UTC+8), Oct 6, 2026 = 6:00 pm18:00 JST (UTC+9), Oct 6, 2026 = 7:30 pm19:30 ACDT (UTC+10:30), Oct 6, 2026 = 10:00 pm22:00 NZDT (UTC+13), Oct 6, 2026 = 4:00 am04:00 CDT (UTC-5), Oct 6, 2026 = 10:00 am10:00 BST (UTC+1), Oct 6, 2026

SGT is 1 hour behind Tokyo. SGT is 2 hours and 30 minutes behind ACDT. SGT is 5 hours behind Auckland. SGT is 13 hours ahead of CDT. SGT is 7 hours ahead of London.

How the time difference changes

SGT to Tokyo

SGT is 1 hour behind Tokyo year-round.

Working hours of 9:00 am to 5:00 pm in SGT correspond to 10:00 am to 6:00 pm in Tokyo.Working hours of 09:00 to 17:00 in SGT correspond to 10:00 to 18:00 in Tokyo.

SGT to ACDT

Depending on seasonal clock changes, SGT is 1 hour and 30 minutes behind ACST or SGT is 2 hours and 30 minutes behind ACDT.

Depending on seasonal clock changes, working hours of 9:00 am to 5:00 pm in SGT correspond to 10:30 am to 6:30 pm in ACST or working hours of 9:00 am to 5:00 pm in SGT correspond to 11:30 am to 7:30 pm in ACDT.Depending on seasonal clock changes, working hours of 09:00 to 17:00 in SGT correspond to 10:30 to 18:30 in ACST or working hours of 09:00 to 17:00 in SGT correspond to 11:30 to 19:30 in ACDT.

SGT to Auckland

Depending on seasonal clock changes, SGT is 4 hours behind Auckland or SGT is 5 hours behind Auckland.

Depending on seasonal clock changes, working hours of 9:00 am to 5:00 pm in SGT correspond to 1:00 pm to 9:00 pm in Auckland or working hours of 9:00 am to 5:00 pm in SGT correspond to 2:00 pm to 10:00 pm in Auckland.Depending on seasonal clock changes, working hours of 09:00 to 17:00 in SGT correspond to 13:00 to 21:00 in Auckland or working hours of 09:00 to 17:00 in SGT correspond to 14:00 to 22:00 in Auckland.

SGT to CDT

For most of the year, SGT is 13 hours ahead of CDT. At other times of the year, SGT is 14 hours ahead of CST.

For most of the year, working hours of 9:00 am to 5:00 pm in SGT correspond to 8:00 pm (previous day) to 4:00 am in CDT. At other times of the year, working hours of 9:00 am to 5:00 pm in SGT correspond to 7:00 pm (previous day) to 3:00 am in CST.For most of the year, working hours of 09:00 to 17:00 in SGT correspond to 20:00 (previous day) to 04:00 in CDT. At other times of the year, working hours of 09:00 to 17:00 in SGT correspond to 19:00 (previous day) to 03:00 in CST.

SGT to London

For most of the year, SGT is 7 hours ahead of London. At other times of the year, SGT is 8 hours ahead of London.

For most of the year, working hours of 9:00 am to 5:00 pm in SGT correspond to 2:00 am to 10:00 am in London. At other times of the year, working hours of 9:00 am to 5:00 pm in SGT correspond to 1:00 am to 9:00 am in London.For most of the year, working hours of 09:00 to 17:00 in SGT correspond to 02:00 to 10:00 in London. At other times of the year, working hours of 09:00 to 17:00 in SGT correspond to 01:00 to 09:00 in London.

Compare SGT time with Tokyo, ACDT, Auckland, CDT, and London time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.

Time Difference

Singapore Time is 1 hour behind JST (Japan Standard Time). Singapore Time is 2 hours and 30 minutes behind Australian Central Daylight Time. Singapore Time is 5 hours behind NZDT (New Zealand Daylight Time). Singapore Time is 13 hours ahead of Central Daylight Time. Singapore Time is 7 hours ahead of BST (British Summer Time).
5:00 pm17:00 in SGT is 6:00 pm18:00 in Tokyo, Japan and is 7:30 pm19:30 in ACDT and is 10:00 pm22:00 in Auckland, New Zealand and is 4:00 am04:00 in CDT and is 10:00 am10:00 in London, United Kingdom

SGT to Tokyo call time
Best time for a conference call or a meeting is between 9am-4pm09:00-16:00 in SGT which corresponds to 10am-5pm10:00-17:00 in Tokyo
SGT to ACDT call time
Best time for a conference call or a meeting is between 9am-2:30pm09:00-14:30 in SGT which corresponds to 11:30am-5pm11:30-17:00 in ACDT
SGT to Auckland call time
Best time for a conference call or a meeting is between 9am-12pm09:00-12:00 in SGT which corresponds to 2pm-5pm14:00-17:00 in Auckland
SGT to CDT call time
Best time for a conference call or a meeting is between 7am-8am07:00-08:00 in SGT which corresponds to 6pm-7pm18:00-19:00 in CDT (previous day)
SGT to London call time
Best time for a conference call or a meeting is between 4pm-5pm16:00-17:00 in SGT which corresponds to 9am-10am09:00-10:00 in London

5:00 pm17:00 Singapore Time (SGT). Offset UTC +8:00 hours
6:00 pm18:00 JST (Japan Standard Time) (Tokyo, Japan). Offset UTC +9:00 hours
7:30 pm19:30 Australian Central Daylight Time (ACDT). Offset UTC +10:30 hours
10:00 pm22:00 NZDT (New Zealand Daylight Time) (Auckland, New Zealand). Offset UTC +13:00 hours
4:00 am04:00 Central Daylight Time (CDT). Offset UTC -5:00 hours
10:00 am10:00 BST (British Summer Time) (London, United Kingdom). Offset UTC +1:00 hour

5:00 pm17:00 SGT / 6:00 pm18:00 Tokyo, Japan / 7:30 pm19:30 ACDT / 10:00 pm22:00 Auckland, New Zealand / 4:00 am04:00 CDT / 10:00 am10:00 London, United Kingdom

SGTTokyo, JapanACDTAuckland, New ZealandCDTLondon, United Kingdom
12:00am1:00am2:30am5:00am11:00am5:00pm
1:00am2:00am3:30am6:00am12:00pm6:00pm
2:00am3:00am4:30am7:00am1:00pm7:00pm
3:00am4:00am5:30am8:00am2:00pm8:00pm
4:00am5:00am6:30am9:00am3:00pm9:00pm
5:00am6:00am7:30am10:00am4:00pm10:00pm
6:00am7:00am8:30am11:00am5:00pm11:00pm
7:00am8:00am9:30am12:00pm6:00pm12:00am
8:00am9:00am10:30am1:00pm7:00pm1:00am
9:00am10:00am11:30am2:00pm8:00pm2:00am
10:00am11:00am12:30pm3:00pm9:00pm3:00am
11:00am12:00pm1:30pm4:00pm10:00pm4:00am
12:00pm1:00pm2:30pm5:00pm11:00pm5:00am
1:00pm2:00pm3:30pm6:00pm12:00am6:00am
2:00pm3:00pm4:30pm7:00pm1:00am7:00am
3:00pm4:00pm5:30pm8:00pm2:00am8:00am
4:00pm5:00pm6:30pm9:00pm3:00am9:00am
5:00pm6:00pm7:30pm10:00pm4:00am10:00am
6:00pm7:00pm8:30pm11:00pm5:00am11:00am
7:00pm8:00pm9:30pm12:00am6:00am12:00pm
8:00pm9:00pm10:30pm1:00am7:00am1:00pm
9:00pm10:00pm11:30pm2:00am8:00am2:00pm
10:00pm11:00pm12:30am3:00am9:00am3:00pm
11:00pm12:00am1:30am4:00am10:00am4:00pm
00:0001:0002:3005:0011:0017:00
01:0002:0003:3006:0012:0018:00
02:0003:0004:3007:0013:0019:00
03:0004:0005:3008:0014:0020:00
04:0005:0006:3009:0015:0021:00
05:0006:0007:3010:0016:0022:00
06:0007:0008:3011:0017:0023:00
07:0008:0009:3012:0018:0000:00
08:0009:0010:3013:0019:0001:00
09:0010:0011:3014:0020:0002:00
10:0011:0012:3015:0021:0003:00
11:0012:0013:3016:0022:0004:00
12:0013:0014:3017:0023:0005:00
13:0014:0015:3018:0000:0006:00
14:0015:0016:3019:0001:0007:00
15:0016:0017:3020:0002:0008:00
16:0017:0018:3021:0003:0009:00
17:0018:0019:3022:0004:0010:00
18:0019:0020:3023:0005:0011:00
19:0020:0021:3000:0006:0012:00
20:0021:0022:3001:0007:0013:00
21:0022:0023:3002:0008:0014:00
22:0023:0000:3003:0009:0015:00
23:0000:0001:3004:0010:0016:00

Singapore Time

Offset: SGT is 8 hours ahead Greenwich Mean Time (GMT) and is used in Asia

Countries using this time zone: Singapore

Principal Cities: The largest city in the SGT time zone is Singapore in Singapore, with about 5.639 million people.

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

SGT Time Zone Geo Map
SGT timezone map

SGT 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 east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Hotel - Military abbreviation for SGT
  • H - short form of 'Hotel'
Time zones with the GMT +8 offset:
  • ACT - ASEAN Common Time
  • AWST - Australian Western Standard Time
  • BNT - Brunei Darussalam Time
  • CAST - Casey Time
  • CHOT - Choibalsan Time
  • CST - China Standard Time
  • H - Hotel Time Zone
  • HKT - Hong Kong Time
  • HOVST - Hovd Summer Time
  • IRKT - Irkutsk Time
  • KRAST - Krasnoyarsk Summer Time
  • MYT - Malaysia Time
  • PHT - Philippine Time
  • SGT - Singapore Time
  • ULAT - Ulaanbaatar Time
  • WITA - Central Indonesian Time

Tokyo Information

Time Zone

Abbreviation / Name
JST - Japan Standard Time
UTC / GMT Offset
+9:00 hours during Japan Standard Time, currently in use.

Tokyo Facts

Country
Japan
Alternative Names
Edo, TYO, Tochiu, Tocio, Tokija, Tokijas, Tokio, Tokió, Tokjo, Tokyo, Toquio, Toquio - dong jing, Toquio - 東京, Tòquio, Tókýó, Tóquio, Tōkyō, dokyo, dong jing, dong jing dou, dong-gyeong, tokeiyw, toki'o, tokkiyo, tokyo, twkyw, twqyw, Τόκιο, Токио, Токё, Токіо, Տոկիո, טוקיו, توكيو, توکیو, طوكيو, ܛܘܟܝܘ, ܜܘܟܝܘ, टोक्यो, টোকিও, டோக்கியோ, โตเกียว, ტოკიო, 东京, 東京, 東京都, 도쿄, 동경
Population
9,733,276
Currency
Yen (JPY)
Geographic Coordinates
35° 41' N Latitude / 139° 41' E Longitude
International Dialing Code
+81

Australian Central Daylight Time

Offset: ACDT is 10 hours and 30 minutes ahead Greenwich Mean Time (GMT) and is used in Australia

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 Adelaide Hills, Mount Gambier, Morphett Vale, Broken Hill.

ACDT Time Zone Geo Map
ACDT timezone map

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).

Daylight saving time clock moves forward for one hourStart: 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.

Daylight saving time clock moves back for one hourEnd: 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 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

Auckland Information

Time Zone

Abbreviation / Name
NZDT - New Zealand Daylight Time
NZST - New Zealand Standard Time
UTC / GMT Offset
+13:00 hours during New Zealand Daylight Time, currently in use.
+12:00 hours during New Zealand Standard Time.
Daylight Saving Time Change
+1:00 hour - DST is in use
Daylight Saving Time Starts
Daylight saving time clock moves forward for one hourSunday, September 27, 2026 at 2:00 amSunday, September 27, 2026 at 02:00 local time. DST starts annually on the last Sunday of September. Clocks are turned forward 1 hour to Sunday, September 27, 2026 at 3:00 amSunday, September 27, 2026 at 03:00 local daylight time instead. Also called Spring Forward or Summer Time.
Daylight Saving Time Ends
Daylight saving time clock moves backward for one hourSunday, April 5, 2026 at 3:00 amSunday, April 5, 2026 at 03:00 local time. DST ends annually on the 1st Sunday of April. Clocks are turned backward 1 hour to Sunday, April 5, 2026 at 2:00 amSunday, April 5, 2026 at 02:00 local standard time instead. Also called Fall Back or switch to Winter Time.

Auckland Facts

Country
New Zealand
Alternative Names
AKL, Auckland, Aucland, Aucopolis, Awklanda, Okland, Oklandas, Oklant, Oklend, Oklenda, Tamaki-makau-rau, Tāmaki-makau-rau, akalyanda, akland, aklant, ao ke lan dou hui qu, awkland, awklnd, okalanda, okalenda, okeullaendeu, oklainda, okurando, yavkland, Ώκλαντ, Окланд, Окленд, Օկլենդ, אוקלנד, آوکلند, أوكلاند, ئاۋكلاند, ऑकलंड, ऑक्लैण्ड, অকল্যান্ড, ઓકલેન્ડ, ஆக்லன்ட், ఆక్లాండ్, ಆಕ್ಲೆಂಡ್‌, ഓക്‌ലൻഡ്, โอกแลนด์, အော့ကလန်မြို့, ოკლენდი, オークランド, 奧克蘭都會區, 오클랜드
Population
1,547,200
Currency
Dollar (NZD)
Geographic Coordinates
36° 50' S Latitude / 174° 45' E Longitude
International Dialing Code
+64

Central Daylight Time

Offset: CDT is 5 hours behind Greenwich Mean Time (GMT) and is used in North America

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, Ciudad Juarez, Dallas.

French: HAC - Heure Avancée du Centre

Spanish: CT - Zona Centro

CDT Time Zone Geo Map
CDT timezone map

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).

Daylight saving time clock moves forward for one hourStart: 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.

Daylight saving time clock moves back for one hourEnd: 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 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

London Information

Time Zone

Abbreviation / Name
BST - British Summer Time
GMT - Greenwich Mean Time
UTC / GMT Offset
+1:00 hours during British Summer Time, currently in use.
+0:00 hours during Greenwich Mean Time.
Daylight Saving Time Change
+1:00 hour - DST is in use
Daylight Saving Time Starts
Daylight saving time clock moves forward for one hourSunday, March 29, 2026 at 1:00 amSunday, March 29, 2026 at 01:00 local time. DST starts annually on the last Sunday of March. Clocks are turned forward 1 hour to Sunday, March 29, 2026 at 2:00 amSunday, March 29, 2026 at 02:00 local daylight time instead. Also called Spring Forward or Summer Time.
Daylight Saving Time Ends
Daylight saving time clock moves backward for one hourSunday, October 25, 2026 at 2:00 amSunday, October 25, 2026 at 02:00 local time. DST ends annually on the last Sunday of October. Clocks are turned backward 1 hour to Sunday, October 25, 2026 at 1:00 amSunday, October 25, 2026 at 01:00 local standard time instead. Also called Fall Back or switch to Winter 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