What is the time difference between CLT and HST?

Hawaii Standard Time (HST) is 7 hours behind Chile Standard Time (CLT). CLT uses a UTC offset of UTC-3, while HST uses UTC-10. For example, when it's 9:00 AM in CLT, it's 2:00 AM in HST. Note that this difference may shift by one hour during daylight saving time transitions if CLT observes DST. Use the conversion table above to see the exact time for each hour of the day.

How do I convert CLT to HST?

To convert CLT to HST, subtract 7 hours from the CLT time. For example, 9:00 AM CLT is 2:00 AM HST, and 5:00 PM CLT is 10:00 AM HST. Keep in mind that during daylight saving time transitions, the offset between these timezones may temporarily change by one hour. You can also use the interactive converter above for quick, accurate results.

What time is it in HST when it's noon in CLT?

When it's 12:00 PM (noon) in CLT, it's 5:00 AM in HST. This is because HST is 7 hours behind CLT. Similarly, when it's 6:00 PM in CLT, it's 11:00 AM in HST. During daylight saving time transitions, these times may shift by one hour, so always verify the current offset. The color-coded conversion table above shows every hour mapped between both timezones.

How many hours behind is HST from CLT?

HST is 7 hours behind CLT. This means when it's 9:00 AM in CLT, it's 2:00 AM in HST, and when it's midnight in CLT, it's 5:00 PM in HST. The exact difference can vary by one hour during daylight saving time transitions. The conversion table above provides a complete hour-by-hour mapping.

Is HST ahead or behind CLT?

HST is behind CLT by 7 hours. Clocks in HST show an earlier time than CLT, meaning the day starts later in HST relative to CLT. For example, when it's noon in CLT, it's still 5:00 AM in HST. This gap may change by one hour during DST transitions.

Does CLT observe daylight saving time?

Yes, Chile Standard Time observes daylight saving time. Clocks move forward by one hour in spring and fall back in autumn. This seasonal shift means the time difference between CLT and HST may change temporarily during transition periods. Check our DST change calendar for exact dates.

Does HST observe daylight saving time?

No, Hawaii Standard Time does not observe daylight saving time. The UTC offset of UTC-10 remains the same year-round, making time conversions to HST more predictable. Countries and regions in this timezone keep their clocks unchanged regardless of the season.

What is the best time to call from CLT to HST?

The best time for a call between CLT and HST is during overlapping business hours (9 AM – 5 PM) in both timezones. To reach someone in HST during their work day, call between 4:00 PM and 12:00 AM your CLT time. Avoid calling too early or late, as the 7 hours difference means your evening could be their early morning. Check the color-coded conversion table above — green hours indicate business hours in both zones, making it easy to find the ideal time.

When does daylight saving time change in CLT?

Daylight saving time transitions vary by year and region. Chile Standard Time observes DST, which typically shifts clocks forward by one hour in spring ("spring forward") and back in fall ("fall back"). During these transition periods, the time difference between CLT and HST may temporarily change by one hour, which can cause confusion for scheduled meetings or calls. It's important to double-check your conversions around transition dates, especially if the two timezones switch on different dates. Check our DST change calendar for exact transition dates in the current year.

Do CLT and HST ever have the same time?

No, CLT and HST never show the same time because their base UTC offsets are different. However, because CLT observes daylight saving time and HST does not, the time difference between them changes by one hour during DST transitions. This means the gap narrows or widens depending on the season, but the two clocks never align. Always verify the current offset around DST transition dates to avoid scheduling errors.

CLT to HST Converter

Convert Chile Standard Time to Hawaii Standard Time. See the hour-by-hour conversion table below.

Timezone Details

Santiago

2:04 AM

Tuesday, September 8, 2026

Santiago (UTC-03:00)

Hawaii Standard Time

7:04 PM

Monday, September 7, 2026

HST (UTC-10:00)

Difference: -7 hours

HST DST: No

24-Hour Overview

Santiago — 24-hour overview

12a12a

3a3a

6a6a

9a9a

10a

11a

12p12p

3p3p

6p6p

9p9p

10p

11p

NightMorningBusinessEvening

HST — 24-hour overview

5p5p

8p8p

10p

11p11p

12a

2a2a

5a5a

8a8a

10a

11a11a

12p

2p2p

NightMorningBusinessEvening

Frequently Asked Questions

Related Conversions

HST to CLT

Cities in These Timezones

CLT Cities

Santiago

HST Cities

Honolulu

More Tools

Compare CLT & HST Plan a Meeting (CLT & HST)See on Map

Learn More

How Time Zones Work Understanding DST Timezone Abbreviations

External Resources

Hawaii Standard Time on Wikipedia IANA Time Zone Database