Does it account for Daylight Saving Time?

Yes, our converter uses the IANA timezone database, which includes all current DST rules for every timezone in the world.

UTC (Coordinated Universal Time) is the primary time standard by which the world regulates clocks. All timezones are defined as offsets from UTC.

Can I compare multiple timezones at once?

Yes, you can add multiple cities or timezones and see the equivalent times side by side.

How many timezones are there in the world?

There are 38 distinct UTC offsets in use, ranging from UTC-12 to UTC+14. This includes half-hour (UTC+5:30 India, UTC+9:30 Australia) and 45-minute offsets (UTC+5:45 Nepal, UTC+8:45 Australia).

What is the International Date Line?

The International Date Line (IDL) runs roughly along the 180° meridian in the Pacific Ocean. When you cross it westward, you gain a day; crossing eastward, you lose a day.

Why do some timezones have 30 or 45 minute offsets?

Countries chose offsets that best matched their solar noon. India uses UTC+5:30 and Nepal uses UTC+5:45 because standard hourly offsets didn't align well with their geography.

Which country has the most timezones?

France has the most (12 timezones) due to overseas territories. Russia spans 11 timezones. The US has 6 (including Hawaii and Alaska).

KST to MSK

-6h

KST

KSTSOURCE

UTC+09:00

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

MSK

UTC+03:00

HH06

MM00

06:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

KST

MSK

12:00 AM

6:00 PM-1

2:00 AM

8:00 PM-1

4:00 AM

10:00 PM-1

6:00 AM

12:00 AM

8:00 AM

2:00 AM

10:00 AM

4:00 AM

12:00 PM

6:00 AM

2:00 PM

8:00 AM

4:00 PM

10:00 AM

6:00 PM

12:00 PM

8:00 PM

2:00 PM

10:00 PM

4:00 PM

Green rows indicate typical business hours (9 AM - 5 PM)

KST and MSK on the World Map

The map below highlights the KST (Korea Standard Time) and MSK (Moscow Standard Time) timezone regions across the globe.

KST Zone

→

MSK Zone

Explore all world timezones interactively →

KST – Korea Standard Time

UTC+09:00

Korea Standard Time (KST) is the time zone for South Korea, 9 hours ahead of UTC.

Countries in KST

South KoreaNorth Korea

Major Cities in KST

SeoulBusanIncheonDaeguDaejeonPyongyang

Key Facts about KST

•South Korea does not observe daylight saving time.
•Seoul is home to Samsung, LG, and Hyundai headquarters.
•KST is the same offset as JST (UTC+09:00).

Daylight Saving:No – UTC+09:00 year-round

Learn more about KST on Wikipedia

MSK – Moscow Standard Time

UTC+03:00

Moscow Standard Time (MSK) is the time zone for Moscow and western Russia, 3 hours ahead of UTC.

Countries in MSK

Russia (Moscow, St. Petersburg, western regions)

Major Cities in MSK

MoscowSt. PetersburgVolgogradNizhny NovgorodKazanSamaraRostov-on-Don

Key Facts about MSK

•All Russian train timetables use Moscow Time, regardless of location.
•Russia abolished daylight saving time in 2011.
•Moscow is the most populous city in Europe with over 12 million residents.
•MSK shares the offset with Saudi Arabia (AST) and East Africa (EAT).

Daylight Saving:No – UTC+03:00 year-round

Learn more about MSK on Wikipedia

Comparing Time Zones: KST and MSK

KST runs on Korea Standard Time (KST) at UTC+09:00. MSK runs on Moscow Standard Time (MSK) at UTC+03:00. That puts KST 6 hours behind MSK — a difference of -6h at the current offsets.

In practice, when it is 9:00 AM in KST it is 3:00 AM in MSK. Midnight in KST is 6:00 PM in MSK. Neither zone observes daylight saving time, so the offset between them stays constant all year.

KST to MSK time conversion table

KST (KST)	MSK (MSK)	Day
12:00 AM	6:00 PM	previous day
6:00 AM	12:00 AM	same day
7:00 AM	1:00 AM	same day
8:00 AM	2:00 AM	same day
9:00 AM	3:00 AM	same day
12:00 PM	6:00 AM	same day
3:00 PM	9:00 AM	same day
5:00 PM	11:00 AM	same day
6:00 PM	12:00 PM	same day
9:00 PM	3:00 PM	same day

Why people convert KST to MSK time

Scheduling a call from KST to MSK: a 10:00 AM start in KST lands at 4:00 AM in MSK, so you can confirm the slot without doing the arithmetic yourself.
Finding shared working hours: both KST and MSK are inside the 9-to-5 working day between 3:00 PM and 5:00 PM KST time (9:00 AM–11:00 AM MSK). That is roughly 2 hours of usable overlap.
Coordinating a KST-based team with MSK contacts: quoting times in the other side's local clock — not your own — removes the single biggest source of missed meetings.

Always state the zone abbreviation, not just the hour. "3:00 PM KST" is unambiguous; "3 PM" across a -6h gap is not.
Block 3:00 PM–5:00 PM KST as the recurring meeting window if you work primarily from KST and need MSK colleagues present.

About KST (Korea Standard Time)

Korea Standard Time (KST) is the time zone used in South Korea. It shares the same UTC offset as Japan Standard Time but is a distinct time zone. South Korea does not observe daylight saving time. Seoul, the capital, is a major global tech and business hub.

About MSK (Moscow Standard Time)

Moscow Standard Time (MSK) is the time zone used in Moscow, St. Petersburg, and much of western Russia. Russia abolished DST in 2011, so MSK is observed year-round. MSK is also the reference time for Russian railways – all train schedules in Russia are given in Moscow Time regardless of the actual local time zone.

Best time to call between KST and MSK

Both KST and MSK sit inside the 9 AM – 5 PM working day between 3:00 PM–5:00 PM KST, which is 9:00 AM–11:00 AM MSK. That gives roughly 2 hours of shared time — the safest window for a live call or meeting.

Business hours overlap

KST and MSK overlap for about 2 hours during the working day — enough for meetings if you avoid the edges of the window.

KST is 6 hours behind MSK (KST UTC+09:00 → MSK UTC+03:00). The shared working window is 3:00 PM–5:00 PM KST. Remember to re-check around daylight-saving transitions.