What is the time difference between JST and CLT?

Chile Standard Time (CLT) is 12 hours behind Japan Standard Time (JST). JST uses a UTC offset of UTC+9, while CLT uses UTC-3. For example, when it's 9:00 AM in JST, it's 9:00 PM in CLT. 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 JST to CLT?

To convert JST to CLT, subtract 12 hours from the JST time. For example, 9:00 AM JST is 9:00 PM CLT, and 5:00 PM JST is 5:00 AM CLT. 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 CLT when it's noon in JST?

When it's 12:00 PM (noon) in JST, it's 12:00 AM in CLT. This is because CLT is 12 hours behind JST. Similarly, when it's 6:00 PM in JST, it's 6:00 AM in CLT. 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 CLT from JST?

CLT is 12 hours behind JST. This means when it's 9:00 AM in JST, it's 9:00 PM in CLT, and when it's midnight in JST, it's 12:00 PM in CLT. 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 CLT ahead or behind JST?

CLT is behind JST by 12 hours. Clocks in CLT show an earlier time than JST, meaning the day starts later in CLT relative to JST. For example, when it's noon in JST, it's still 12:00 AM in CLT. This gap may change by one hour during DST transitions.

Does JST observe daylight saving time?

No, Japan Standard Time does not observe daylight saving time. The UTC offset of UTC+9 remains the same year-round, making time conversions from JST more predictable. Countries and regions in this timezone keep their clocks unchanged regardless of the season.

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 JST and CLT may change temporarily during transition periods. Check our DST change calendar for exact dates.

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

The best time for a call between JST and CLT is during overlapping business hours (9 AM – 5 PM) in both timezones. To reach someone in CLT during their work day, call between 9:00 PM and 5:00 AM your JST time. Avoid calling too early or late, as the 12 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 JST and CLT 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 JST and CLT ever have the same time?

No, JST and CLT never show the same time because their base UTC offsets are different. However, because CLT observes daylight saving time and JST 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.

JST to CLT Converter

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

Timezone Details

Japan Standard Time

6:55 AM

Friday, April 3, 2026

JST (UTC+09:00)

Santiago

6:55 PM

Thursday, April 2, 2026

Santiago (UTC-03:00)

Difference: -12 hours

JST DST: No

24-Hour Overview

JST — 24-hour overview

12a12a

3a3a

6a6a

9a9a

10a

11a

12p12p

3p3p

6p6p

9p9p

10p

11p

NightMorningBusinessEvening

Santiago — 24-hour overview

12p12p

3p3p

6p6p

9p9p

10p

11p

12a12a

3a3a

6a6a

9a9a

10a

11a

NightMorningBusinessEvening

Frequently Asked Questions

Related Conversions

CLT to JST EST to JST JST to EST PST to JST JST to PST GMT to JST JST to GMT IST to JST JST to IST

Cities in These Timezones

JST Cities

Tokyo Osaka Fukuoka

CLT Cities

Santiago

More Tools

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

Learn More

How Time Zones Work Understanding DST Timezone Abbreviations

External Resources

Japan Standard Time on Wikipedia IANA Time Zone Database