HST to CDT Converter
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
2:00 am02:00 HST (UTC-10), Nov 11, 2026 = 6:00 am06:00 CST (UTC-6), Nov 11, 2026
HST is 4 hours behind CST.
HST and CDT examples
These examples always use HST (UTC-10) 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.
HST is 5 hours behind CDT.
How the time difference changes
For most of the year, HST is 5 hours behind CDT. From Nov 1, 2026 to Mar 14, 2027, and from Nov 7, 2027 to Mar 12, 2028, HST is 4 hours behind CST.
For most of the year, working hours of 9:00 am to 6:00 pm in HST correspond to 2:00 pm to 11:00 pm in CDT. At other times of the year, working hours of 9:00 am to 6:00 pm in HST correspond to 1:00 pm to 10:00 pm in CST.For most of the year, working hours of 09:00 to 18:00 in HST correspond to 14:00 to 23:00 in CDT. At other times of the year, working hours of 09:00 to 18:00 in HST correspond to 13:00 to 22:00 in CST.
Compare HST time with CDT time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Hawaii Standard Time is 4 hours behind Central Standard Time.
2:00 am02:00 in HST is 6:00 am06:00 in CST
HST to CST call time
Best time for a conference call or a meeting is between 9am-2pm09:00-14:00 in HST which corresponds to 1pm-6pm13:00-18:00 in CST.
2:00 am02:00 Hawaii Standard Time (HST). Offset UTC -10:00 hours
6:00 am06:00 Central Standard Time (CST). Offset UTC -6:00 hours
2:00 am02:00 HST / 6:00 am06:00 CST
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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Hawaii Standard Time
Offset: HST is 10 hours behind Greenwich Mean Time (GMT).
Countries using this time zone: United States
Principal Cities: The largest city in the HST time zone is Honolulu in the United States, with about 350,964 people. Other major cities in this time zone include Pearl City, Hilo, Kailua, Waipahu.
Daylight Saving: Some places on Hawaii Standard Time (HST) keep the same time all year, while others use HST for only part of the year and change their clocks for daylight saving time; see upcoming clock changes worldwide.
Today all shaded areas are on HST.
HST representations, usage and related time zones
- -10 - basic short
- -1000 - basic
- -10:00 - extended
- -1000 - sign character (-) followed by a four digit time providing hours (10) and minutes (00) of the offset. Indicates an offset of ten hours to the west of the zero meridian.
- Whiskey - Military abbreviation for HST
- W - short form of 'Whiskey'
- America/Adak
- America/Atka
- HST
- Pacific/Honolulu
- Pacific/Johnston
- US/Aleutian
- US/Hawaii
- HAST - Hawaii-Aleutian Standard Time
- CKT - Cook Island Time
- HST - Hawaii Standard Time
- TAHT - Tahiti Time
- W - Whiskey Time Zone
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