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NDT to MDT Converter

Updating current time…
NDT
Newfoundland Daylight Time
GMT -2:30
12am
3am
6am
9am
12pm
3pm
6pm
9pm
MDT
Mountain Daylight Time
GMT -6
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Quick answers

Selected conversion

9:30 am09:30 NDT (UTC-2:30), Oct 4, 2026 = 6:00 am06:00 MDT (UTC-6), Oct 4, 2026

NDT is 3 hours and 30 minutes ahead of MDT.

NDT and MDT examples

These examples always use NDT (UTC-2:30) and MDT (UTC-6). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.

NDT is 3 hours and 30 minutes ahead of MDT.

How the time difference changes

For most of the year, NDT is 3 hours and 30 minutes ahead of MDT. At other times of the year, NST is 3 hours and 30 minutes ahead of MST. Briefly around clock changes, NDT is 4 hours and 30 minutes ahead of MST or NST is 2 hours and 30 minutes ahead of MDT.

For most of the year, working hours of 9:00 am to 5:00 pm in NDT correspond to 5:30 am to 1:30 pm in MDT. At other times of the year, working hours of 9:00 am to 5:00 pm in NST correspond to 5:30 am to 1:30 pm in MST.For most of the year, working hours of 09:00 to 17:00 in NDT correspond to 05:30 to 13:30 in MDT. At other times of the year, working hours of 09:00 to 17:00 in NST correspond to 05:30 to 13:30 in MST.

Compare NDT time with MDT time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.

Time Difference

Newfoundland Daylight Time is 3 hours and 30 minutes ahead of Mountain Daylight Time.
9:30 am09:30 in NDT is 6:00 am06:00 in MDT

NDT to MDT call time
Best time for a conference call or a meeting is between 12:30pm-5pm12:30-17:00 in NDT which corresponds to 9am-1:30pm09:00-13:30 in MDT

9:30 am09:30 Newfoundland Daylight Time (NDT). Offset UTC -2:30 hours
6:00 am06:00 Mountain Daylight Time (MDT). Offset UTC -6:00 hours

9:30 am09:30 NDT / 6:00 am06:00 MDT

NDTMDT
12:00am8:30pm
1:00am9:30pm
2:00am10:30pm
3:00am11:30pm
4:00am12:30am
5:00am1:30am
6:00am2:30am
7:00am3:30am
8:00am4:30am
9:00am5:30am
10:00am6:30am
11:00am7:30am
12:00pm8:30am
1:00pm9:30am
2:00pm10:30am
3:00pm11:30am
4:00pm12:30pm
5:00pm1:30pm
6:00pm2:30pm
7:00pm3:30pm
8:00pm4:30pm
9:00pm5:30pm
10:00pm6:30pm
11:00pm7:30pm
00:0020:30
01:0021:30
02:0022:30
03:0023:30
04:0000:30
05:0001:30
06:0002:30
07:0003:30
08:0004:30
09:0005:30
10:0006:30
11:0007:30
12:0008:30
13:0009:30
14:0010:30
15:0011:30
16:0012:30
17:0013:30
18:0014:30
19:0015:30
20:0016:30
21:0017:30
22:0018:30
23:0019:30

Newfoundland Daylight Time

Offset: NDT is 2 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 NDT time zone is St Johns in Canada, with about 110,525 people. Other major cities in this time zone include Conception Bay South, Mount Pearl, Corner Brook.

French: HAT - Heure Avancée de Terre-Neuve

NDT Time Zone Geo Map
NDT timezone map

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

Daylight saving time clock moves forward for one hourStart: Newfoundland Daylight Time (NDT) started on Sunday, March 8, 2026 at 2:00 am02:00 local time and clocks were set one hour forward to Sunday, March 8, 2026, 3:00 am03:00. Daylight saving starts annually on the second Sunday of March.

Daylight saving time clock moves back for one hourEnd: Newfoundland Daylight Time (NDT) ends on Sunday, November 1, 2026 at 2:00 am02:00 local time and clocks are 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.

See 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

Mountain Daylight Time

Offset: MDT is 6 hours behind Greenwich Mean Time (GMT) and is used in North America

Countries using this time zone: Canada, Mexico, United States

Principal Cities: The largest city in the MDT time zone is Calgary in Canada, with about 1.307 million people. Other major cities in this time zone include Edmonton, Denver, El Paso, Albuquerque.

French: HAR - Heure Avancée des Rocheuses

Spanish: MT - Zona Pacífico

MDT Time Zone Geo Map
MDT timezone map

Daylight Saving: Mountain Daylight Time (MDT) is a daylight saving/summer time zone. During winter, some places set clocks back one hour and observe Mountain Standard Time (MST).

Daylight saving time clock moves forward for one hourStart: Mountain Daylight Time (MDT) started on Sunday, March 8, 2026 at 2:00 am02:00 local time and clocks were set one hour forward to Sunday, March 8, 2026, 3:00 am03:00. Daylight saving starts annually on the second Sunday of March.

Daylight saving time clock moves back for one hourEnd: Mountain Daylight Time (MDT) ends on Sunday, November 1, 2026 at 2:00 am02:00 local time and clocks are 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.

See upcoming clock changes worldwide.

MDT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -06 - basic short
  • -0600 - basic
  • -06:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -0600 - sign character (-) followed by a four digit time providing hours (06) and minutes (00) of the offset. Indicates an offset of six hours to the west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Sierra - Military abbreviation for MDT
  • S - short form of 'Sierra'
IANA/Olson: Reflects MDT time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • America/Boise
  • America/Cambridge_Bay
  • America/Ciudad_Juarez
  • America/Denver
  • America/Edmonton
  • America/Inuvik
  • America/Shiprock
  • America/Yellowknife
  • Canada/Mountain
  • MST7MDT
  • Navajo
  • US/Mountain
Time zones with the GMT -6 offset:
  • CST - Central Standard Time
  • CT - Central Time
  • MDT - Mountain Daylight Time
  • EAST - Easter Island Standard Time
  • GALT - Galapagos Time
  • S - Sierra Time Zone
EST to ISTGMT to ESTPST to ESTEST to GMTPST to GMT