Offset
The time difference between Cuba Standard Time and Hawaii Time is 6 hours.
Cuba Standard Time (CDT) is ahead of Hawaii Time (HST).
CDT: UTC-4
HST: UTC-10
Cuba Standard Time is currently observing daylight saving time; Hawaii Time is not.
When to schedule
Business-hours overlap: 3 PM–5 PM in Cuba Standard Time (9 AM–11 AM in Hawaii Time).
Both teams are in working hours during this window on weekdays.
Suggested time: 4:00 PM Cuba Standard Time (10:00 AM Hawaii Time).
This window may shift by an hour during daylight saving time.
Public holidays in 2026
National public holidays can affect availability — a counterpart is likely off work on their own holidays, so it's worth planning meetings and deadlines around them.
Cuba
- Triumph of the RevolutionThu, Jan 1
- Victory of Fidel CastroFri, Jan 2
- Good FridayFri, Apr 3
- Labour DayFri, May 1
- Day before the Commemoration of the Assault of the Moncada garrisonSat, Jul 25
- Commemoration of the Assault of the Moncada garrisonSun, Jul 26
- Day after the Commemoration of the Assault of the Moncada garrisonMon, Jul 27
- Independence DaySat, Oct 10
- Christmas DayFri, Dec 25
United States
- New Year's DayThu, Jan 1
- Martin Luther King, Jr. DayMon, Jan 19
- Presidents DayMon, Feb 16
- Memorial DayMon, May 25
- Juneteenth National Independence DayFri, Jun 19
- Independence DayFri, Jul 3
- Labour DayMon, Sep 7
- Columbus DayMon, Oct 12
- Veterans DayWed, Nov 11
- Thanksgiving DayThu, Nov 26
- Christmas DayFri, Dec 25
About these zones
Cuba Standard Time is also known as CST, or CDT. To call Cuba, dial +53.
Hawaii Time is also known as HST. To call United States, dial +1.
Hawaii Time is approximately 4,750 miles west of Cuba Standard Time.
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| CST-CUBA | HST | Day |
|---|---|---|
| 12:00 am | 6:00 pm | -1 day |
| 1:00 am | 7:00 pm | -1 day |
| 2:00 am | 8:00 pm | -1 day |
| 3:00 am | 9:00 pm | -1 day |
| 4:00 am | 10:00 pm | -1 day |
| 5:00 am | 11:00 pm | -1 day |
| 6:00 am | 12:00 am | Same day |
| 7:00 am | 1:00 am | Same day |
| 8:00 am | 2:00 am | Same day |
| 9:00 am | 3:00 am | Same day |
| 10:00 am | 4:00 am | Same day |
| 11:00 am | 5:00 am | Same day |
| 12:00 pm | 6:00 am | Same day |
| 1:00 pm | 7:00 am | Same day |
| 2:00 pm | 8:00 am | Same day |
| 3:00 pm | 9:00 am | Same day |
| 4:00 pm | 10:00 am | Same day |
| 5:00 pm | 11:00 am | Same day |
| 6:00 pm | 12:00 pm | Same day |
| 7:00 pm | 1:00 pm | Same day |
| 8:00 pm | 2:00 pm | Same day |
| 9:00 pm | 3:00 pm | Same day |
| 10:00 pm | 4:00 pm | Same day |
| 11:00 pm | 5:00 pm | Same day |
Daylight saving time
Cuba Standard Time observes daylight saving time; Hawaii Time does not. The offset between the two zones changes when Cuba Standard Time transitions: on Sunday, November 1, 2026, clocks fall back from CDT to CST.
See the daylight saving time page for transition dates across every time zone.
Daylight today
- Sunrise
- 6:44 AM
- Sunset
- 8:14 PM
- Day length
- 13h 30m
- Sunrise
- 5:50 AM
- Sunset
- 7:12 PM
- Day length
- 13h 22m
Cities in these zones
Cities in Cuba Standard Time
Cities in Hawaii Time
Browse all cities to see the current local time anywhere.
Airports in these zones
Airports in Cuba Standard Time
- HAV
Airports in Hawaii Time
- HNL
Related conversions
Common conversions
- What is 9:00 am CST-CUBA in HST?
- 9:00 am CST-CUBA is 3:00 am HST.
- What is 12:00 pm CST-CUBA in HST?
- 12:00 pm CST-CUBA is 6:00 am HST.
- What is 12:30 pm CST-CUBA in HST?
- 12:30 pm CST-CUBA is 6:30 am HST.
- What is 2:00 pm CST-CUBA in HST?
- 2:00 pm CST-CUBA is 8:00 am HST.
- What is 5:00 pm CST-CUBA in HST?
- 5:00 pm CST-CUBA is 11:00 am HST.
- What is 11:30 pm CST-CUBA in HST?
- 11:30 pm CST-CUBA is 5:30 pm HST.