NST to CDT Caribbean Converter
CDT is not used on this date
This converter uses CST (GMT -5), the offset Havana uses on this date. Open the CST converter.Quick answers
Selected conversion
The selected date and time will appear here when the converter loads.
NST and CDT examples
These examples always use NST (UTC-3:30) and CDT (UTC-4). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.
NST is 30 minutes ahead of CDT.
How the time difference changes
For most of the year, NDT is 1 hour and 30 minutes ahead of CDT Caribbean. At other times of the year, NST is 1 hour and 30 minutes ahead of CST Caribbean. Briefly around clock changes, NST is 30 minutes ahead of CDT Caribbean.
For most of the year, working hours of 9:00 am to 5:00 pm in NDT correspond to 7:30 am to 3:30 pm in CDT Caribbean. At other times of the year, working hours of 9:00 am to 5:00 pm in NST correspond to 7:30 am to 3:30 pm in CST Caribbean.
Compare NST time with CDT time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Newfoundland Standard Time is 1 hour and 30 minutes ahead of Cuba Standard Time
8:30 am08:30 in NST is 7:00 am07:00 in CST
NST to CST call time
Best time for a conference call or a meeting is between 10:30am-5pm in NST which corresponds to 9am-3:30pm in CST
8:30 am08:30 Newfoundland Standard Time (NST). Offset UTC -3:30 hours
7:00 am07:00 Cuba Standard Time (CST). Offset UTC -5:00 hours
8:30 am08:30 NST / 7:00 am07:00 CST
| NST | CST |
|---|---|
| 12am (midnight) | 10:30 pm |
| 1am | 11:30 pm |
| 2am | 12:30 am |
| 3am | 1:30 am |
| 4am | 2:30 am |
| 5am | 3:30 am |
| 6am | 4:30 am |
| 7am | 5:30 am |
| 8am | 6:30 am |
| 9am | 7:30 am |
| 10am | 8:30 am |
| 11am | 9:30 am |
| 12pm (noon) | 10:30 am |
| 1pm | 11:30 am |
| 2pm | 12:30 pm |
| 3pm | 1:30 pm |
| 4pm | 2:30 pm |
| 5pm | 3:30 pm |
| 6pm | 4:30 pm |
| 7pm | 5:30 pm |
| 8pm | 6:30 pm |
| 9pm | 7:30 pm |
| 10pm | 8:30 pm |
| 11pm | 9:30 pm |
| 00:00 | 22:30 |
| 01:00 | 23:30 |
| 02:00 | 00:30 |
| 03:00 | 01:30 |
| 04:00 | 02:30 |
| 05:00 | 03:30 |
| 06:00 | 04:30 |
| 07:00 | 05:30 |
| 08:00 | 06:30 |
| 09:00 | 07:30 |
| 10:00 | 08:30 |
| 11:00 | 09:30 |
| 12:00 | 10:30 |
| 13:00 | 11:30 |
| 14:00 | 12:30 |
| 15:00 | 13:30 |
| 16:00 | 14:30 |
| 17:00 | 15:30 |
| 18:00 | 16:30 |
| 19:00 | 17:30 |
| 20:00 | 18:30 |
| 21:00 | 19:30 |
| 22:00 | 20:30 |
| 23:00 | 21:30 |
Newfoundland Standard Time
Offset: NST is 3 hours and 30 minutes behind Greenwich Mean Time (GMT) and is used in North America
Countries using this time zone: Canada
Principal Cities: The largest city in the NST time zone is St Johns in Canada, with about 99,182 people. Other major cities in this time zone include Mount Pearl, Corner Brook, Conception Bay South.
French: HNT - Heure Normale de Terre-Neuve
Daylight Saving: This is a standard time zone. During summer, some places set clocks forward one hour for daylight saving time and observe Newfoundland Daylight Time (NDT).
Start: Newfoundland Standard Time (NST) started on Sunday, November 2, 2025 at 2:00 am local time and clocks were set one hour back to Sunday, November 2, 2025, 1:00 am. Standard time starts annually on the first Sunday of November.
End: Newfoundland Standard Time (NST) ends on Sunday, March 8, 2026 at 2:00 am local time and clocks are set one hour forward to Sunday, March 8, 2026, 3:00 am local daylight time instead. Standard time ends annually on the second Sunday of March.
NST representations, usage and related time zones
- -0330 - basic
- -03:30 - extended
- -0330 - sign character (-) followed by a four digit time providing hours (03) and minutes (30) of the offset. Indicates an offset of three hours and thirty minutes to the west of the zero meridian.
- America/St_Johns
- Canada/Newfoundland
Cuba Daylight Time
Offset: CDT is 4 hours behind Greenwich Mean Time (GMT) and is used in Caribbean
Countries using this time zone: Cuba
Principal Cities: The largest city in the CDT time zone is Havana in Cuba, with about 2.164 million people. Other major cities in this time zone include Santiago de Cuba, Camaguey, Holguin, Guantanamo.
Daylight Saving: Cuba Daylight Time (CDT) is a daylight saving/summer time zone, but some places set clocks back one hour during winter and observe Cuba Standard Time (CST).
End: Cuba Daylight Time (CDT) ended on Sunday, November 2, 2025 at 1:00 am local time and clocks were set one hour back to Sunday, November 2, 2025, 12:00 am local standard time instead. Daylight saving ends annually on the first Sunday of November
Start: Cuba Daylight Time (CDT) starts on Sunday, March 8, 2026 at 12:00 am local time and clocks are set one hour forward to Sunday, March 8, 2026, 1:00 am. Daylight saving starts annually on the second Sunday of March
CDT representations, usage and related time zones
- -04 - basic short
- -0400 - basic
- -04:00 - extended
- -0400 - sign character (-) followed by a four digit time providing hours (04) and minutes (00) of the offset. Indicates an offset of four hours to the west of the zero meridian.
- Quebec - Military abbreviation for CDT
- Q - short form of 'Quebec'
- America/Havana
- Cuba
- Central Daylight Time - UTC -5
- Cuba Daylight Time - UTC -4
- AST - Atlantic Standard Time
- EDT - Eastern Daylight Time
- AMT - Amazon Time
- BOT - Bolivia Time
- CDT - Cuba Daylight Time
- CLT - Chile Standard Time
- FKT - Falkland Island Time
- GYT - Guyana Time
- HLV - Hora Legal de Venezuela
- PYT - Paraguay Time
- Q - Quebec Time Zone
- VET - Venezuelan Standard Time