ACT to CDT Converter
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Quick answers
Selected conversion
8:00 pm20:00 ACT (UTC+8), Nov 4, 2026 = 6:00 am06:00 CST (UTC-6), Nov 4, 2026
ACT is 14 hours ahead of CST.
ACT and CDT examples
These examples always use ACT (UTC+8) and CDT (UTC-5). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.
ACT is 13 hours ahead of CDT.
How the time difference changes
For most of the year, ACT is 13 hours ahead of CDT. From Nov 1, 2026 to Mar 14, 2027, ACT is 14 hours ahead of CST.
For most of the year, working hours of 9:00 am to 6:00 pm in ACT correspond to 8:00 pm (previous day) to 5:00 am in CDT. At other times of the year, working hours of 9:00 am to 6:00 pm in ACT correspond to 7:00 pm (previous day) to 4:00 am in CST.For most of the year, working hours of 09:00 to 18:00 in ACT correspond to 20:00 (previous day) to 05:00 in CDT. At other times of the year, working hours of 09:00 to 18:00 in ACT correspond to 19:00 (previous day) to 04:00 in CST.
Compare ACT time with CDT time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
ASEAN Common Time is 14 hours ahead of Central Standard Time.
8:00 pm20:00 in ACT is 6:00 am06:00 in CST
ACT to CST call time
Best time for a conference call or a meeting is between 8am-9am08:00-09:00 in ACT which corresponds to 6pm-7pm18:00-19:00 in CST (previous day). Their 9am–6pm09:00–18:00 working hours do not overlap; this is a suggested compromise.
8:00 pm20:00 ASEAN Common Time (ACT). Offset UTC +8:00 hours
6:00 am06:00 Central Standard Time (CST). Offset UTC -6:00 hours
8:00 pm20:00 ACT / 6:00 am06:00 CST
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ASEAN Common Time
Offset: ACT is 8 hours ahead of Greenwich Mean Time (GMT).
Daylight Saving: Clocks in ASEAN Common Time (ACT) do not change for daylight saving time, so ACT stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter; see upcoming clock changes worldwide.
ACT representations, usage and related time zones
- +08 - basic short
- +0800 - basic
- +08:00 - extended
- +0800 - sign character (+) followed by a four digit time providing hours (08) and minutes (00) of the offset. Indicates an offset of eight hours to the east of the zero meridian.
- Hotel - Military abbreviation for ACT
- H - short form of 'Hotel'
- ACT - ASEAN Common Time
- AWST - Australian Western Standard Time
- BNT - Brunei Darussalam Time
- CAST - Casey Time
- CHOT - Choibalsan Time
- CST - China Standard Time
- H - Hotel Time Zone
- HKT - Hong Kong Time
- HOVST - Hovd Summer Time
- IRKT - Irkutsk Time
- KRAST - Krasnoyarsk Summer Time
- MYT - Malaysia Time
- PHT - Philippine Time
- SGT - Singapore Time
- ULAT - Ulaanbaatar Time
- WITA - Central Indonesian Time
Central Daylight Time
Offset: CDT is 5 hours behind Greenwich Mean Time (GMT).
Countries using this time zone: Canada, Mexico, United States
Principal Cities: The largest city in the CDT 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.
French: HAC - Heure Avancée du Centre
Spanish: CT - Zona Centro
Today the shaded areas are on UTC−6 (Central Standard Time).
Daylight Saving: Central Daylight Time (CDT) is a daylight saving/summer time zone, but some places set clocks back one hour during winter and observe Central Standard Time (CST).
End: Central Daylight Time (CDT) 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: Central Daylight Time (CDT) 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.
CDT 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 CDT
- R - short form of 'Romeo'
- America/Chicago
- America/Indiana/Knox
- America/Indiana/Tell_City
- America/Knox_IN
- America/Matamoros
- America/Menominee
- America/North_Dakota/Beulah
- America/North_Dakota/Center
- America/North_Dakota/New_Salem
- America/Ojinaga
- America/Rainy_River
- America/Rankin_Inlet
- America/Resolute
- America/Winnipeg
- CST6CDT
- Canada/Central
- US/Central
- US/Indiana-Starke
- Central Daylight Time - UTC -5
- Cuba Daylight Time - UTC -4
- 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