What is the time difference between GST and SGT?

Singapore Time (SGT) is 4 hours ahead of Gulf Standard Time (GST). GST uses a UTC offset of UTC+4, while SGT uses UTC+8. For example, when it's 9:00 AM in GST, it's 1:00 PM in SGT. This difference remains constant year-round since neither timezone observes daylight saving time. Use the conversion table above to see the exact time for each hour of the day.

How do I convert GST to SGT?

To convert GST to SGT, add 4 hours to the GST time. For example, 9:00 AM GST is 1:00 PM SGT, and 5:00 PM GST is 9:00 PM SGT. Since neither timezone observes DST, this conversion stays the same all year. You can also use the interactive converter above for quick, accurate results.

What time is it in SGT when it's noon in GST?

When it's 12:00 PM (noon) in GST, it's 4:00 PM in SGT. This is because SGT is 4 hours ahead of GST. Similarly, when it's 6:00 PM in GST, it's 10:00 PM in SGT. This relationship is constant throughout the year. The color-coded conversion table above shows every hour mapped between both timezones.

How many hours ahead is SGT from GST?

SGT is 4 hours ahead of GST. This means when it's 9:00 AM in GST, it's 1:00 PM in SGT, and when it's midnight in GST, it's 4:00 AM in SGT. This offset is constant throughout the year since neither timezone uses daylight saving time. The conversion table above provides a complete hour-by-hour mapping.

Is SGT ahead or behind GST?

SGT is ahead of GST by 4 hours. Clocks in SGT show a later time than GST, meaning the day starts earlier in SGT relative to GST. For example, when it's morning in GST, it's later in the morning in SGT. This difference stays the same year-round.

Does GST observe daylight saving time?

No, Gulf Standard Time does not observe daylight saving time. The UTC offset of UTC+4 remains the same year-round, making time conversions from GST more predictable. Countries and regions in this timezone keep their clocks unchanged regardless of the season.

Does SGT observe daylight saving time?

No, Singapore Time does not observe daylight saving time. The UTC offset of UTC+8 remains the same year-round, making time conversions to SGT more predictable. Countries and regions in this timezone keep their clocks unchanged regardless of the season.

What is the best time to call from GST to SGT?

The best time for a call between GST and SGT is during overlapping business hours (9 AM – 5 PM) in both timezones. To reach someone in SGT during their work day, call between 5:00 AM and 1:00 PM your GST time. Avoid calling too early or late, as the 4 hours difference means your evening could be their late night. Check the color-coded conversion table above — green hours indicate business hours in both zones, making it easy to find the ideal time.

Do GST and SGT ever have the same time?

No, GST and SGT are always 4 hours apart and never display the same clock time simultaneously. Neither timezone observes DST, so the difference is constant year-round with no seasonal variation. The 4 hours offset is determined by their fixed positions relative to the Prime Meridian (UTC). You can always rely on this consistent difference when planning across these timezones.

GST to SGT Converter

Convert Gulf Standard Time to Singapore Time. See the hour-by-hour conversion table below.

Timezone Details

Gulf Standard Time

1:55 AM

Friday, April 3, 2026

GST (UTC+04:00)

Singapore Time

5:55 AM

Friday, April 3, 2026

SGT (UTC+08:00)

Difference: +4 hours

GST DST: No

SGT DST: No

24-Hour Overview

GST — 24-hour overview

12a12a

3a3a

6a6a

9a9a

10a

11a

12p12p

3p3p

6p6p

9p9p

10p

11p

NightMorningBusinessEvening

SGT — 24-hour overview

4a4a

7a7a

10a10a

11a

12p

1p1p

4p4p

7p7p

10p10p

11p

12a

1a1a

NightMorningBusinessEvening

Frequently Asked Questions

Related Conversions

SGT to GST IST to SGT SGT to IST EST to SGT SGT to EST GMT to SGT SGT to GMT

Cities in These Timezones

GST Cities

Dubai Abu Dhabi

SGT Cities

Singapore

More Tools

Compare GST & SGT Plan a Meeting (GST & SGT)See on Map

Learn More

How Time Zones Work Understanding DST Timezone Abbreviations

External Resources

Gulf Standard Time on Wikipedia Singapore Time on Wikipedia IANA Time Zone Database