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BDT
12am
3am
6am
9am
12pm
3pm
6pm
9pm
KST
UTC+9
3h ahead
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Quick answers

Selected conversion

6:00 pm18:00 BDT (UTC+6), Oct 18, 2026 = 9:00 pm21:00 KST (UTC+9), Oct 18, 2026

BDT is 3 hours behind KST.

BDT and KST examples

These examples always use BDT (UTC+6) and KST (UTC+9). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.

BDT is 3 hours behind KST.

How the time difference changes

BDT is 3 hours behind KST year-round.

Working hours of 9:00 am to 6:00 pm in BDT correspond to 12:00 pm to 9:00 pm in KST.Working hours of 09:00 to 18:00 in BDT correspond to 12:00 to 21:00 in KST.

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

Time Difference

Bangladesh Time is 3 hours behind Korea Standard Time.
6:00 pm18:00 in BDT is 9:00 pm21:00 in KST

BDT to KST call time
Best time for a conference call or a meeting is between 9am-3pm09:00-15:00 in BDT which corresponds to 12pm-6pm12:00-18:00 in KST

6:00 pm18:00 Bangladesh Time (BDT). Offset UTC +6:00 hours
9:00 pm21:00 Korea Standard Time (KST). Offset UTC +9:00 hours

6:00 pm18:00 BDT / 9:00 pm21:00 KST

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Hourly time comparison
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Bangladesh Time

Offset: BDT is 6 hours ahead of Greenwich Mean Time (GMT).

Countries using this time zone: Bangladesh

Principal Cities: The largest city in the BDT time zone is Dhaka in Bangladesh, with about 10.357 million people. Other major cities in this time zone include Chattogram, Gazipur, Khulna, Rangpur.

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

BDT 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 east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Foxtrot - Military abbreviation for BDT
  • F - short form of 'Foxtrot'
Time zones with the GMT +6 offset:
  • BST - Bangladesh Standard Time
  • BDT - Bangladesh Time
  • BTT - Bhutan Time
  • F - Foxtrot Time Zone
  • IOT - Indian Chagos Time
  • KGT - Kyrgyzstan Time
  • OMST - Omsk Standard Time
  • XJT - Xinjiang Time
  • YEKST - Yekaterinburg Summer Time

Korea Standard Time

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

Countries using this time zone: North Korea, South Korea

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