NDT to CDT Converter

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NST/NDT
Newfoundland Standard Time
UTC−3:30
12am
3am
6am
9am
12pm
3pm
6pm
9pm
Newfoundland Time is on standard time: NST (UTC−3:30) until Sun, Mar 14, 2027.
Keep NDT (UTC−2:30)
CST/CDT
Central Standard Time
UTC−6
2h 30m behind
12am
3am
6am
9am
12pm
3pm
6pm
9pm
Central Time is on standard time: CST (UTC−6) until Sun, Mar 14, 2027.
Keep CDT (UTC−5)

Quick answers

Selected conversion

8:30 am08:30 NST (UTC-3:30), Nov 13, 2026 = 6:00 am06:00 CST (UTC-6), Nov 13, 2026

NST is 2 hours and 30 minutes ahead of CST.

NDT and CDT examples

These examples always use NDT (UTC-2:30) 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.

NDT is 2 hours and 30 minutes ahead of CDT.

How the time difference changes

For most of the year, NDT is 2 hours and 30 minutes ahead of CDT. From Nov 1, 2026 to Mar 14, 2027, and from Nov 7, 2027 to Mar 12, 2028, NST is 2 hours and 30 minutes ahead of CST. Briefly around clock changes, NDT is 3 hours and 30 minutes ahead of CST or NST is 1 hour and 30 minutes ahead of CDT.

For most of the year, working hours of 9:00 am to 6:00 pm in NDT correspond to 6:30 am to 3:30 pm in CDT. At other times of the year, working hours of 9:00 am to 6:00 pm in NST correspond to 6:30 am to 3:30 pm in CST.For most of the year, working hours of 09:00 to 18:00 in NDT correspond to 06:30 to 15:30 in CDT. At other times of the year, working hours of 09:00 to 18:00 in NST correspond to 06:30 to 15:30 in CST.

Compare NDT 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 2 hours and 30 minutes ahead of Central Standard Time.
8:30 am08:30 in NST is 6:00 am06:00 in CST

NST to CST call time
Best time for a conference call or a meeting is between 11:30am-6pm11:30-18:00 in NST which corresponds to 9am-3:30pm09:00-15:30 in CST.

8:30 am08:30 Newfoundland Standard Time (NST). Offset UTC -3:30 hours
6:00 am06:00 Central Standard Time (CST). Offset UTC -6:00 hours

8:30 am08:30 NST / 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.

Hourly time comparison
NSTCST
9:30pm previous day
10:30pm previous day
11:30pm previous day
12:30am
1:30am
2:30am
3:30am
4:30am
5:30am
6:30am
7:30am
8:30am
9:30am
10:30am
11:30am
12:30pm
1:30pm
2:30pm
3:30pm
4:30pm
5:30pm
6:30pm
7:30pm
8:30pm
21:30 previous day
22:30 previous day
23:30 previous day
00:30
01:30
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03:30
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08:30
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Newfoundland Daylight Time

Offset: NDT is 2 hours and 30 minutes behind Greenwich Mean Time (GMT).

Countries using this time zone: Canada

Principal Cities: The largest city in the NDT time zone is St. John's in Canada, with about 110,525 people. Other major cities in this time zone include Corner Brook, Grand Falls-Windsor, Gander, Clarenville.

French: HAT - Heure Avancée de Terre-Neuve

Map of the areas on Newfoundland Daylight Time (NDT)
NDT part of the year

Today the shaded areas are on UTC−3:30 (NST).

Open the world time zone map© OpenStreetMap

Daylight Saving: Newfoundland Daylight Time (NDT) is a daylight saving/summer time zone, but some places set clocks back one hour during winter and observe Newfoundland Standard Time (NST).

123456789101112End: Newfoundland Daylight Time (NDT) 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.

123456789101112Start: Newfoundland Daylight Time (NDT) 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 Canada daylight saving time and upcoming clock changes worldwide.

NDT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -0230 - basic
  • -02:30 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -0230 - sign character (-) followed by a four digit time providing hours (02) and minutes (30) of the offset. Indicates an offset of two hours and thirty minutes to the west of the zero meridian.
IANA/Olson: Reflects NDT time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • America/St_Johns
  • Canada/Newfoundland

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

Map of the areas on Central Daylight Time (CDT)
CDT part of the year

Today the shaded areas are on UTC−6 (Central Standard Time).

Open the world time zone map© OpenStreetMap

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).

123456789101112End: 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.

123456789101112Start: 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

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -05 - basic short
  • -0500 - basic
  • -05:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -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.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Romeo - Military abbreviation for CDT
  • R - short form of 'Romeo'
IANA/Olson: Reflects CDT time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • 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
CDT Abbreviation: Several time zones share CDT abbreviation and it could refer to these time zones
  • Central Daylight Time - UTC -5
  • Cuba Daylight Time - UTC -4
Time zones with the GMT -5 offset:
  • 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