SGT to Tokyo to ACDT to Auckland to CST to London Time Converter

Updating current time…
SGT
Singapore Time
UTC+8
Sun, Nov 1
12am
3am
6am
9am
12pm
3pm
6pm
9pm
Tokyo
JapanJST
UTC+9
Sun, Nov 1
1h ahead
12am
3am
6am
9am
12pm
3pm
6pm
9pm
ACDT
Australian Central Daylight Time
UTC+10:30
Sun, Nov 1
2h 30m ahead
12am
3am
6am
9am
12pm
3pm
6pm
9pm
Auckland
New ZealandNZDT
UTC+13
Sun, Nov 1
5h ahead
12am
3am
6am
9am
12pm
3pm
6pm
9pm
CST
Central Standard Time
UTC−6
Sun, Nov 1
14h behind
12am
3am
6am
9am
12pm
3pm
6pm
9pm
London
United KingdomGMT
UTC+0
Sun, Nov 1
8h behind
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Quick answers

Selected conversion

5:00 pm17:00 SGT (UTC+8), Nov 1, 2026 = 6:00 pm18:00 JST (UTC+9), Nov 1, 2026 = 7:30 pm19:30 ACDT (UTC+10:30), Nov 1, 2026 = 10:00 pm22:00 NZDT (UTC+13), Nov 1, 2026 = 3:00 am03:00 CST (UTC-6), Nov 1, 2026 = 9:00 am09:00 GMT (UTC+0), Nov 1, 2026

SGT is 1 hour behind Tokyo. SGT is 2 hours and 30 minutes behind ACDT. SGT is 5 hours behind Auckland. SGT is 14 hours ahead of CST. SGT is 8 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 6:00 pm in SGT correspond to 10:00 am to 7:00 pm in Tokyo.Working hours of 09:00 to 18:00 in SGT correspond to 10:00 to 19:00 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 6:00 pm in SGT correspond to 10:30 am to 7:30 pm in ACST or working hours of 9:00 am to 6:00 pm in SGT correspond to 11:30 am to 8:30 pm in ACDT.Depending on seasonal clock changes, working hours of 09:00 to 18:00 in SGT correspond to 10:30 to 19:30 in ACST or working hours of 09:00 to 18:00 in SGT correspond to 11:30 to 20:30 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 6:00 pm in SGT correspond to 1:00 pm to 10:00 pm in Auckland or working hours of 9:00 am to 6:00 pm in SGT correspond to 2:00 pm to 11:00 pm in Auckland.Depending on seasonal clock changes, working hours of 09:00 to 18:00 in SGT correspond to 13:00 to 22:00 in Auckland or working hours of 09:00 to 18:00 in SGT correspond to 14:00 to 23:00 in Auckland.

SGT to CST

For most of the year, SGT is 13 hours ahead of CDT. From Nov 1, 2026 to Mar 14, 2027, SGT is 14 hours ahead of CST.

For most of the year, working hours of 9:00 am to 6:00 pm in SGT correspond to 8:00 pm (previous day) to 5:00 am in CDT. At other times of the year, working hours of 9:00 am to 6:00 pm in SGT correspond to 7:00 pm (previous day) to 4:00 am in CST.For most of the year, working hours of 09:00 to 18:00 in SGT correspond to 20:00 (previous day) to 05:00 in CDT. At other times of the year, working hours of 09:00 to 18:00 in SGT correspond to 19:00 (previous day) to 04:00 in CST.

SGT to London

For most of the year, SGT is 7 hours ahead of London. From Oct 25, 2026 to Mar 28, 2027, and from Oct 31, 2027 to Mar 26, 2028, SGT is 8 hours ahead of London.

For most of the year, working hours of 9:00 am to 6:00 pm in SGT correspond to 2:00 am to 11:00 am in London. At other times of the year, working hours of 9:00 am to 6:00 pm in SGT correspond to 1:00 am to 10:00 am in London.For most of the year, working hours of 09:00 to 18:00 in SGT correspond to 02:00 to 11:00 in London. At other times of the year, working hours of 09:00 to 18:00 in SGT correspond to 01:00 to 10:00 in London.

Compare SGT time with Tokyo, ACDT, Auckland, CST, 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 14 hours ahead of Central Standard Time. Singapore Time is 8 hours ahead of GMT (Greenwich Mean 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 3:00 am03:00 in CST and is 9:00 am09:00 in London, United Kingdom

SGT to Tokyo call time
Best time for a conference call or a meeting is between 9am-5pm09:00-17:00 in SGT which corresponds to 10am-6pm10:00-18:00 in Tokyo
SGT to ACDT call time
Best time for a conference call or a meeting is between 9am-3:30pm09:00-15:30 in SGT which corresponds to 11:30am-6pm11:30-18:00 in ACDT
SGT to Auckland call time
Best time for a conference call or a meeting is between 9am-1pm09:00-13:00 in SGT which corresponds to 2pm-6pm14:00-18:00 in Auckland
SGT to CDT call time
Best time for a conference call or a meeting is between 7:30am-8:30am07:30-08:30 in SGT which corresponds to 6:30pm-7:30pm18:30-19:30 in CDT (previous day). Their 9am–6pm09:00–18:00 working hours do not overlap; this is a suggested compromise.
SGT to London call time
Best time for a conference call or a meeting is between 5pm-6pm17:00-18:00 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
3:00 am03:00 Central Standard Time (CST). Offset UTC -6:00 hours
9:00 am09:00 GMT (Greenwich Mean Time) (London, United Kingdom). Offset UTC 0:00 hours

5:00 pm17:00 SGT / 6:00 pm18:00 Tokyo, Japan / 7:30 pm19:30 ACDT / 10:00 pm22:00 Auckland, New Zealand / 3:00 am03:00 CST / 9:00 am09:00 London, United Kingdom

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
SGTTokyo, JapanACDTAuckland, New ZealandCSTLondon, United Kingdom
1:00am2:30am5:00am11:00am previous day CDT UTC-54:00pm previous day
2:00am3:30am6:00am12:00pm previous day CDT UTC-55:00pm previous day
3:00am4:30am7:00am1:00pm previous day CDT UTC-56:00pm previous day
4:00am5:30am8:00am2:00pm previous day CDT UTC-57:00pm previous day
5:00am6:30am9:00am3:00pm previous day CDT UTC-58:00pm previous day
6:00am7:30am10:00am4:00pm previous day CDT UTC-59:00pm previous day
7:00am8:30am11:00am5:00pm previous day CDT UTC-510:00pm previous day
8:00am9:30am12:00pm6:00pm previous day CDT UTC-511:00pm previous day
9:00am10:30am1:00pm7:00pm previous day CDT UTC-512:00am
10:00am11:30am2:00pm8:00pm previous day CDT UTC-51:00am
11:00am12:30pm3:00pm9:00pm previous day CDT UTC-52:00am
12:00pm1:30pm4:00pm10:00pm previous day CDT UTC-53:00am
1:00pm2:30pm5:00pm11:00pm previous day CDT UTC-54:00am
2:00pm3:30pm6:00pm12:00am CDT UTC-55:00am
3:00pm4:30pm7:00pm1:00am CDT UTC-56:00am
4:00pm5:30pm8:00pm1:00am7:00am
5:00pm6:30pm9:00pm2:00am8:00am
6:00pm7:30pm10:00pm3:00am9:00am
7:00pm8:30pm11:00pm4:00am10:00am
8:00pm9:30pm12:00am next day5:00am11:00am
9:00pm10:30pm1:00am next day6:00am12:00pm
10:00pm11:30pm2:00am next day7:00am1:00pm
11:00pm12:30am next day3:00am next day8:00am2:00pm
12:00am next day1:30am next day4:00am next day9:00am3:00pm
01:0002:3005:0011:00 previous day CDT UTC-516:00 previous day
02:0003:3006:0012:00 previous day CDT UTC-517:00 previous day
03:0004:3007:0013:00 previous day CDT UTC-518:00 previous day
04:0005:3008:0014:00 previous day CDT UTC-519:00 previous day
05:0006:3009:0015:00 previous day CDT UTC-520:00 previous day
06:0007:3010:0016:00 previous day CDT UTC-521:00 previous day
07:0008:3011:0017:00 previous day CDT UTC-522:00 previous day
08:0009:3012:0018:00 previous day CDT UTC-523:00 previous day
09:0010:3013:0019:00 previous day CDT UTC-500:00
10:0011:3014:0020:00 previous day CDT UTC-501:00
11:0012:3015:0021:00 previous day CDT UTC-502:00
12:0013:3016:0022:00 previous day CDT UTC-503:00
13:0014:3017:0023:00 previous day CDT UTC-504:00
14:0015:3018:0000:00 CDT UTC-505:00
15:0016:3019:0001:00 CDT UTC-506:00
16:0017:3020:0001:0007:00
17:0018:3021:0002:0008:00
18:0019:3022:0003:0009:00
19:0020:3023:0004:0010:00
20:0021:3000:00 next day05:0011:00
21:0022:3001:00 next day06:0012:00
22:0023:3002:00 next day07:0013:00
23:0000:30 next day03:00 next day08:0014:00
00:00 next day01:30 next day04:00 next day09:0015:00

Singapore Time

Offset: SGT is 8 hours ahead of Greenwich Mean Time (GMT).

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.

Current time in Singapore: Singapore time now

Map of the areas on Singapore Time (SGT)
SGT all year

Open the world time zone map© OpenStreetMap

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 Time Zone and Facts

Time Zone

Abbreviation / Offset
JST – Japan Standard Time, UTC+9 (no daylight saving time)

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
More About Tokyo
Tokyo time now
Current Time in Japan
Japan time now

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.

Open the world time zone map© OpenStreetMap

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

Auckland Time Zone and Facts

Time Zone

Abbreviation / Offset
NZDT – New Zealand Daylight Time, UTC+13 (now, daylight saving time)
NZST – New Zealand Standard Time, UTC+12 (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 (NZST). DST ends on the 1st Sunday of April each year. Also called Fall Back or Winter Time.
Daylight Saving Time Starts
123456789101112Sunday, September 26, 2027 at 2:00 amSunday, September 26, 2027 at 02:00: clocks go forward 1 hour to 3:00 am03:00 (NZDT). DST starts on the last Sunday of September each year. Also called Spring Forward or Summer Time.
Clock Changes
New Zealand daylight saving time · Clock changes worldwide

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
More About Auckland
Auckland local time and city facts

Central Standard Time

Offset: CST is 6 hours behind Greenwich Mean Time (GMT).

Countries using this time zone: Belize, Canada, Costa Rica, El Salvador, Guatemala, Honduras, Mexico, Nicaragua, United States

Principal Cities: The largest city in the CST time zone is Mexico City in Mexico, with about 12.294 million people. Other major cities in this time zone include Chicago, Houston, Puebla, Santiago de Querétaro.

French: HNC - Heure Normale du Centre

Spanish: CT - Tiempo Central Estándar, CT - Zona Centro

Map of the areas on Central Standard Time (CST)
CST all year CST part of the year

Today all shaded areas are on CST.

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 Daylight Time (CDT).

123456789101112Start: Central Standard Time (CST) started on Sunday, November 1, 2026 at 2:00 am02:00 local time and clocks were set one hour back to Sunday, November 1, 2026, 1:00 am01:00. Standard time starts annually on the first Sunday of November.

123456789101112End: Central Standard Time (CST) ends on Sunday, March 14, 2027 at 2:00 am02:00 local time and clocks are set one hour forward to Sunday, March 14, 2027, 3:00 am03:00 local daylight time instead. Standard time ends annually on the second Sunday of March.

See USA daylight saving time and upcoming clock changes worldwide.

CST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -06 - basic short
  • -0600 - basic
  • -06:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -0600 - sign character (-) followed by a four digit time providing hours (06) and minutes (00) of the offset. Indicates an offset of six hours to the west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Sierra - Military abbreviation for CST
  • S - short form of 'Sierra'
IANA/Olson: Reflects CST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • America/Bahia_Banderas
  • America/Belize
  • America/Chicago
  • America/Chihuahua
  • America/Costa_Rica
  • America/El_Salvador
  • America/Guatemala
  • America/Indiana/Knox
  • America/Indiana/Tell_City
  • America/Knox_IN
  • America/Managua
  • America/Matamoros
  • America/Menominee
  • America/Merida
  • America/Mexico_City
  • America/Monterrey
  • America/North_Dakota/Beulah
  • America/North_Dakota/Center
  • America/North_Dakota/New_Salem
  • America/Ojinaga
  • America/Rainy_River
  • America/Rankin_Inlet
  • America/Regina
  • America/Resolute
  • America/Swift_Current
  • America/Tegucigalpa
  • America/Winnipeg
  • CST6CDT
  • Canada/Central
  • Canada/Saskatchewan
  • Mexico/General
  • US/Central
  • US/Indiana-Starke
CST Abbreviation: Several time zones share CST abbreviation and it could refer to these time zones
  • Central Standard Time - UTC -6
  • China Standard Time - UTC +8
  • Cuba Standard Time - UTC -5
Time zones with the GMT -6 offset:
  • CST - Central Standard Time
  • CT - Central Time
  • MDT - Mountain Daylight Time
  • EAST - Easter Island Standard Time
  • GALT - Galapagos Time
  • S - Sierra Time Zone

London Time Zone and Facts

Time Zone

Abbreviation / Offset
GMT – Greenwich Mean Time, UTC+0 (now)
BST – British Summer Time, UTC+1 (daylight saving 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.
Daylight Saving Time Ends
123456789101112Sunday, October 31, 2027 at 2:00 amSunday, October 31, 2027 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.
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