What is the time difference between COT and AEST?

Australian Eastern Standard Time (AEST) is 16 hours ahead of Colombia Time (COT). COT uses a UTC offset of UTC-5, while AEST uses UTC+11. For example, when it's 9:00 AM in COT, it's 1:00 AM in AEST. Note that this difference may shift by one hour during daylight saving time transitions if AEST observes DST. Use the conversion table above to see the exact time for each hour of the day.

How do I convert COT to AEST?

To convert COT to AEST, add 16 hours to the COT time. For example, 9:00 AM COT is 1:00 AM AEST, and 5:00 PM COT is 9:00 AM AEST. 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 AEST when it's noon in COT?

When it's 12:00 PM (noon) in COT, it's 4:00 AM in AEST. This is because AEST is 16 hours ahead of COT. Similarly, when it's 6:00 PM in COT, it's 10:00 AM in AEST. 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 ahead is AEST from COT?

AEST is 16 hours ahead of COT. This means when it's 9:00 AM in COT, it's 1:00 AM in AEST, and when it's midnight in COT, it's 4:00 PM in AEST. 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 AEST ahead or behind COT?

AEST is ahead of COT by 16 hours. Clocks in AEST show a later time than COT, meaning the day starts earlier in AEST relative to COT. For example, when it's morning in COT, it's already afternoon or evening in AEST. This gap may change by one hour during DST transitions.

Does COT observe daylight saving time?

No, Colombia Time does not observe daylight saving time. The UTC offset of UTC-5 remains the same year-round, which simplifies time conversions. Regions using COT keep their clocks unchanged regardless of the season.

Does AEST observe daylight saving time?

Yes, Australian Eastern Standard Time observes daylight saving time. During DST, the abbreviation changes to AEDT and clocks move forward by one hour, typically in spring. Clocks then fall back in autumn, returning to standard AEST time. This means the UTC offset for AEST shifts between two values depending on the season. Check our DST change calendar for exact transition dates that may affect your COT to AEST conversions.

What is the best time to call from COT to AEST?

The best time for a call between COT and AEST is during overlapping business hours (9 AM – 5 PM) in both timezones. To reach someone in AEST during their work day, call between 5:00 PM and 1:00 AM your COT time. Avoid calling too early or late, as the 16 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.

When does daylight saving time change in AEST?

Daylight saving time transitions vary by year and region. Australian Eastern 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 COT and AEST 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 COT and AEST ever have the same time?

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

COT to AEST Converter

Convert Colombia Time to Australian Eastern Standard Time. See the hour-by-hour conversion table below.

Upcoming DST Change

Australian Eastern Time (AEDT) will fall back on April 5. Clocks will shift by 1 hour (AEDT → AEST).

View all DST changes

Timezone Details

Bogota

11:10 PM

Saturday, March 28, 2026

Bogota (UTC-05:00)

Australian Eastern Standard Time

3:10 PM

Sunday, March 29, 2026

AEDT (UTC+11:00)

Difference: +16 hours

AEDT DST: Yes (AEDT)

24-Hour Overview

Bogota — 24-hour overview

12a12a

3a3a

6a6a

9a9a

10a

11a

12p12p

3p3p

6p6p

9p9p

10p

11p

NightMorningBusinessEvening

AEDT — 24-hour overview

4p4p

7p7p

10p10p

11p

12a

1a1a

4a4a

7a7a

10a10a

11a

12p

1p1p

NightMorningBusinessEvening

Frequently Asked Questions

Related Conversions

AEST to COT GMT to AEST AEST to GMT IST to AEST AEST to IST EST to AEST AEST to EST PST to AEST AEST to PST

Cities in These Timezones

COT Cities

Bogotá Medellín Cali

AEST Cities

Sydney Canberra

More Tools

Compare COT & AEST Plan a Meeting (COT & AEST)See on Map

Learn More

How Time Zones Work Understanding DST Timezone Abbreviations

External Resources

Australian Eastern Standard Time on Wikipedia IANA Time Zone Database