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).

SGT to Denver

-14h

SGT

SGTSOURCE

UTC+08:00

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Denver

MDT

USA · UTC-06:00☀ DST active

HH10

MM00

(previous day)22:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

SGT

Denver

12:00 AM

10:00 AM-1

2:00 AM

12:00 PM-1

4:00 AM

2:00 PM-1

6:00 AM

4:00 PM-1

8:00 AM

6:00 PM-1

10:00 AM

8:00 PM-1

12:00 PM

10:00 PM-1

2:00 PM

12:00 AM

4:00 PM

2:00 AM

6:00 PM

4:00 AM

8:00 PM

6:00 AM

10:00 PM

8:00 AM

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

SGT and MDT on the World Map

The map below highlights the SGT (Singapore Standard Time) and MDT (Mountain Standard Time) timezone regions across the globe.

SGT Zone

→

MDT Zone

Explore all world timezones interactively →

SGT – Singapore Standard Time

UTC+08:00

Singapore Standard Time (SGT) is the time zone for Singapore, 8 hours ahead of UTC.

Countries in SGT

Singapore

Major Cities in SGT

Singapore

Key Facts about SGT

•Singapore uses UTC+08:00 despite being at about 104°E longitude (closer to UTC+07:00).
•Singapore does not observe daylight saving time.
•The Singapore Exchange (SGX) operates on SGT.

Daylight Saving:No – UTC+08:00 year-round

Learn more about SGT on Wikipedia

MST – Mountain Standard Time

UTC-07:00

Mountain Standard Time (MST) is the time zone for the Mountain region of North America, 7 hours behind UTC.

Countries in MST

United States (Mountain)Canada (Alberta)Mexico (Chihuahua, Sonora)

Major Cities in MST

DenverPhoenixSalt Lake CityCalgaryEdmontonAlbuquerqueEl PasoTucsonBoiseCiudad Juárez

Key Facts about MST

•Arizona does not observe daylight saving time, staying on MST year-round.
•The Navajo Nation in Arizona does observe DST, unlike the rest of the state.
•Denver, the 'Mile High City', is the largest city fully in MST.
•MST covers 6 US states entirely and parts of several others.

Daylight Saving:Yes – switches to MDT

Learn more about MST on Wikipedia

About Denver

Wikipedia

Denver operates on Mountain Time (MST/MDT), 2 hours behind New York. As a tech and aerospace hub, Denver bridges West Coast and Central US business hours.

Population:715,000

Metro:2.9 million

Business Hours:8:00 AM - 5:00 PM MST

Currency:USD ($)

Key Landmarks

Red Rocks AmphitheatreDenver Art MuseumUnion Station16th Street MallColorado State Capitol

Did You Know?

Denver International Airport is the largest airport in North America by land area.

Learn more about MDT timezone →

Understanding the -14h Gap: SGT vs Denver

SGT runs on Singapore Standard Time (SGT) at UTC+08:00. Denver runs on Mountain Daylight Time (MDT) at UTC-06:00, also currently on daylight saving time. That puts SGT 14 hours behind Denver — a difference of -14h at the current offsets.

In practice, when it is 9:00 AM in SGT it is 7:00 PM in Denver on the previous day. Midnight in SGT is 10:00 AM in Denver.Denver observes daylight saving time while SGT does not, so the gap narrows or widens by an hour part of the year.

SGT to Denver time conversion table

SGT (SGT)	Denver (MDT)	Day
12:00 AM	10:00 AM	previous day
6:00 AM	4:00 PM	previous day
7:00 AM	5:00 PM	previous day
8:00 AM	6:00 PM	previous day
9:00 AM	7:00 PM	previous day
12:00 PM	10:00 PM	previous day
3:00 PM	1:00 AM	same day
5:00 PM	3:00 AM	same day
6:00 PM	4:00 AM	same day
9:00 PM	7:00 AM	same day

Why people convert SGT to Denver time

Scheduling a call from SGT to Denver: a 10:00 AM start in SGT lands at 8:00 PM in Denver the previous day, so you can confirm the slot without doing the arithmetic yourself.
Handling a -14h gap: SGT and Denver have no overlap inside a normal 9-to-5 day, so real-time meetings need an early-morning or late-evening slot on one side. 9:00 AM in Denver is 7:00 PM in SGT.
Coordinating a SGT-based team with Denver 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 SGT" is unambiguous; "3 PM" across a -14h gap is not.
With a -14h gap there is no shared 9-to-5 window, so alternate the early start: one week SGT takes the early slot, the next week Denver does.
Denver: Clocks fall back on Sun, Nov 1, 2026. Any meeting series spanning that date will shift by an hour in local time.

About SGT (Singapore Standard Time)

Singapore Standard Time (SGT) is used in Singapore year-round. Singapore does not observe daylight saving time. Despite being geographically close to the UTC+07:00 zone, Singapore uses UTC+08:00 to align with major trading partners like China, Hong Kong, and Malaysia. Singapore is a major global financial hub.

About MST (Mountain Standard Time)

Mountain Standard Time (MST) covers the Rocky Mountain region of the United States and Canada. Arizona is notable for not observing daylight saving time, staying on MST year-round (except the Navajo Nation). The time zone includes major cities like Denver, Phoenix, Calgary, and Salt Lake City. During summer, most areas switch to Mountain Daylight Time (MDT, UTC-06:00).

Best time to call between SGT and Denver

With a -14h offset there is no overlap inside a normal 9 AM – 5 PM day. Denver opens at 9:00 AM MDT, which is 7:00 PM in SGT, so real-time calls need an early-morning or late-evening slot on one side.

Business hours overlap

SGT and Denver have no shared working hours because of the -14h gap. Teams need to alternate early starts or rely on asynchronous handovers.

SGT is 14 hours behind Denver (SGT UTC+08:00 → MDT UTC-06:00). There is no shared 9-to-5 window, so plan around an early or late slot. Remember to re-check around daylight-saving transitions.

🕐 Daylight Saving Time Info

SGT

Does not observe DST

Denver

☀ Currently in DST

Standard: UTC-07:00 · DST: UTC-06:00

Clocks fall back on Sun, Nov 1, 2026

Learn More About Time

Dive deeper into the fascinating world of timekeeping, time zones, and how they shape our global society:

⏳

History of Timekeeping

From sundials to atomic clocks - 5000 years of measuring time

🌍

How Time Zones Work

UTC, offsets, and why zones don't follow straight lines

☀️

Daylight Saving Time

DST dates, which countries observe it, and the ongoing debate

Frequently Asked Questions

What is the time difference between SGT and Denver?

SGT (SGT, UTC+08:00) is 14 hours behind Denver (MDT, UTC-06:00). The gap is currently -14h.

How do I convert SGT time to Denver time?

Add -14h to SGT local time. For example, 9:00 AM in SGT is 7:00 PM in Denver (previous day).

What time is it in Denver right now?

Denver uses MDT at UTC-06:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -14h offset from SGT.

What is the best time to call Denver from SGT?

There is no shared working-hours window because of the -14h gap. The closest option is 1:00 PM in SGT, which is 11:00 PM in Denver.

Which is behind, SGT or Denver?

SGT is 14 hours behind Denver. When it is 12:00 PM in SGT it is 10:00 PM in Denver.

Do SGT and Denver use different time zones?

SGT uses SGT at UTC+08:00, while Denver (USA) uses MDT at UTC-06:00. The IANA identifiers are Asia/Singapore and America/Denver.

Does daylight saving time affect the SGT–Denver difference?

Yes at the moment: Denver is on daylight saving time and SGT is not, so the -14h gap shifts by an hour when exactly one of them changes clocks.

Which other cities share SGT's time zone?

SGT also covers Singapore.

Which countries use SGT, SGT's zone?

SGT is used in Singapore.

Is there a day difference between SGT and Denver?

Sometimes. The -14h gap is large enough that 8:00 PM or later in SGT already falls on the in Denver.

What is the time difference between SGT and Denver?

Denver is -14h from SGT.

What timezone is SGT in?

SGT operates on its local timezone.

What timezone is Denver in?

Denver operates on Mountain Time (MST/MDT), 2 hours behind New York. As a tech and aerospace hub, Denver bridges West Coast and Central US business hours.

What are the business hours in Denver?

Standard business hours in Denver are 8:00 AM - 5:00 PM MST.

Which countries use SGT (Singapore Standard Time)?

SGT is used in Singapore.

Does SGT observe daylight saving time?

No, SGT does not observe daylight saving time and remains at UTC+08:00 year-round.

What are some interesting facts about SGT?

Singapore uses UTC+08:00 despite being at about 104°E longitude (closer to UTC+07:00). Singapore does not observe daylight saving time.

Which cities are in the MST timezone?

Major cities in the MST timezone include Denver, Phoenix, Salt Lake City, Calgary, Edmonton, Albuquerque, El Paso, Tucson.

What is the UTC offset for MST?

Mountain Standard Time (MST) is at UTC-07:00. During daylight saving time, it shifts to MDT.

What should I know about the MST timezone?

Arizona does not observe daylight saving time, staying on MST year-round. The Navajo Nation in Arizona does observe DST, unlike the rest of the state.