CLST to HAC Converter
HAC is not used on this date
This converter keeps HAC at UTC−5. Chicago uses CST (UTC−6) on this date. Open the CST converter, or choose Mexico City, Chicago, or Houston for city-specific time.Start by searching for a time zone, city, or town.
Add one or more places to compare local times, adjust the date, and share the result.
Quick answers
Selected conversion
9:00 am09:00 CLST (UTC-3), Nov 12, 2026 = 7:00 am07:00 HAC (UTC-5), Nov 12, 2026
CLST is 2 hours ahead of HAC.
CLST and HAC examples
These examples always use CLST (UTC-3) and HAC (UTC-5). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.
CLST is 2 hours ahead of HAC.
How the time difference changes
For most of the year, CLST is 2 hours ahead of HAC. From Apr 4 to Sep 5, 2027, CLT is 1 hour ahead of HAC.
For most of the year, working hours of 9:00 am to 6:00 pm in CLST correspond to 7:00 am to 4:00 pm in HAC. At other times of the year, working hours of 9:00 am to 6:00 pm in CLT correspond to 8:00 am to 5:00 pm in HAC.For most of the year, working hours of 09:00 to 18:00 in CLST correspond to 07:00 to 16:00 in HAC. At other times of the year, working hours of 09:00 to 18:00 in CLT correspond to 08:00 to 17:00 in HAC.
Compare CLST time with HAC time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Chile Summer Time is 2 hours ahead of Heure Avancée du Centre.
9:00 am09:00 in CLST is 7:00 am07:00 in HAC
CLST to HAC call time
Best time for a conference call or a meeting is between 11am-6pm11:00-18:00 in CLST which corresponds to 9am-4pm09:00-16:00 in HAC.
9:00 am09:00 Chile Summer Time (CLST). Offset UTC -3:00 hours
7:00 am07:00 Heure Avancée du Centre (HAC). Offset UTC -5:00 hours
9:00 am09:00 CLST / 7:00 am07:00 HAC
Choose an hour to update the converter. Day labels such as “next day” or “+1” are relative to the selected date in the first column. Use Up and Down arrow keys, Home or End to move between hours, then Enter or Space to select.
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Chile Summer Time
Offset: CLST is 3 hours behind Greenwich Mean Time (GMT).
Countries using this time zone: Chile
Principal Cities: The largest city in the CLST time zone is Santiago in Chile, with about 4.837 million people. Other major cities in this time zone include Antofagasta, Viña del Mar, Valparaíso, Puerto Montt.
Today all shaded areas are on CLST.
Daylight Saving: Chile Summer Time (CLST) is a daylight saving/summer time zone. During winter, some places set clocks back one hour and observe Chile Standard Time (CLT).
Start: Chile Summer Time (CLST) started on Sunday, September 6, 2026 at 12:00 am00:00 local time and clocks were set one hour forward to Sunday, September 6, 2026, 1:00 am01:00.
End: Chile Summer Time (CLST) ends on Sunday, April 4, 2027 at 12:00 am00:00 local time and clocks are set one hour back to Saturday, April 3, 2027, 11:00 pm23:00 local standard time instead.
See Chile daylight saving time and upcoming clock changes worldwide.
CLST representations, usage and related time zones
- -03 - basic short
- -0300 - basic
- -03:00 - extended
- -0300 - sign character (-) followed by a four digit time providing hours (03) and minutes (00) of the offset. Indicates an offset of three hours to the west of the zero meridian.
- Papa - Military abbreviation for CLST
- P - short form of 'Papa'
- ADT - Atlantic Daylight Time
- PMT - Pierre & Miquelon Standard Time
- PMST - Pierre & Miquelon Standard Time
- AMST - Amazon Summer Time
- ART - Argentina Time
- BRT - Brasilia Time
- CLST - Chile Summer Time
- FKST - Falkland Islands Summer Time
- FKT - Falkland Islands Time
- GFT - French Guiana Time
- P - Papa Time Zone
- PYST - Paraguay Summer Time
- PYT - Paraguay Time
- SRT - Suriname Time
- UYT - Uruguay Time
Heure Avancée du Centre
Offset: HAC is 5 hours behind Greenwich Mean Time (GMT).
Countries using this time zone: Canada, Mexico, United States
Principal Cities: The largest city in the HAC time zone is Chicago in the United States, with about 2.664 million people. Other major cities in this time zone include Houston, San Antonio, Dallas, Fort Worth.
Today the shaded areas are on UTC−6 (Central Standard Time).
Daylight Saving: Heure Avancée du Centre (HAC) is a daylight saving/summer time zone, but some places set clocks back one hour during winter and observe Central Standard Time (CST).
End: Heure Avancée du Centre (HAC) ended on Sunday, November 1, 2026 at 2:00 am02:00 local time and clocks were set one hour back to Sunday, November 1, 2026, 1:00 am01:00 local standard time instead. Daylight saving ends annually on the first Sunday of November.
Start: Heure Avancée du Centre (HAC) starts on Sunday, March 14, 2027 at 2:00 am02:00 local time and clocks are set one hour forward to Sunday, March 14, 2027, 3:00 am03:00. Daylight saving starts annually on the second Sunday of March.
See USA daylight saving time and upcoming clock changes worldwide.
HAC representations, usage and related time zones
- -05 - basic short
- -0500 - basic
- -05:00 - extended
- -0500 - sign character (-) followed by a four digit time providing hours (05) and minutes (00) of the offset. Indicates an offset of five hours to the west of the zero meridian.
- Romeo - Military abbreviation for HAC
- R - short form of 'Romeo'
- CDT - Central Daylight Time
- EST - Eastern Standard Time
- ET - Eastern Time
- COT - Colombia Time
- CST - Cuba Standard Time
- EASST - Easter Island Summer Time
- ECT - Ecuador Time
- PET - Peru Time
- R - Romeo Time Zone