Updating current time…
NDT/NST
Newfoundland Daylight Time
GMT -2:30
12am
3am
6am
9am
12pm
3pm
6pm
9pm
Newfoundland Time is on daylight saving time: NDT (UTC−2:30) until Sun, Nov 1.
ART
Argentina Time
GMT -3
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Quick answers

Selected conversion

9:30 am09:30 NDT (UTC-2:30), Oct 9, 2026 = 9:00 am09:00 ART (UTC-3), Oct 9, 2026

NDT is 30 minutes ahead of ART.

NST and ART examples

These examples always use NST (UTC-3:30) and ART (UTC-3). 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 behind ART.

How the time difference changes

For most of the year, NDT is 30 minutes ahead of ART. At other times of the year, NST is 30 minutes behind ART.

For most of the year, working hours of 9:00 am to 5:00 pm in NDT correspond to 8:30 am to 4:30 pm in ART. At other times of the year, working hours of 9:00 am to 5:00 pm in NST correspond to 9:30 am to 5:30 pm in ART.For most of the year, working hours of 09:00 to 17:00 in NDT correspond to 08:30 to 16:30 in ART. At other times of the year, working hours of 09:00 to 17:00 in NST correspond to 09:30 to 17:30 in ART.

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

Time Difference

Newfoundland Daylight Time is 30 minutes ahead of Argentina Time.
9:30 am09:30 in NDT is 9:00 am09:00 in ART

NDT to ART call time
Best time for a conference call or a meeting is between 9:30am-5pm09:30-17:00 in NDT which corresponds to 9am-4:30pm09:00-16:30 in ART

9:30 am09:30 Newfoundland Daylight Time (NDT). Offset UTC -2:30 hours
9:00 am09:00 Argentina Time (ART). Offset UTC -3:00 hours

9:30 am09:30 NDT / 9:00 am09:00 ART

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

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 110,525 people. Other major cities in this time zone include Conception Bay South, Mount Pearl, Corner Brook.

French: HNT - Heure Normale de Terre-Neuve

NST Time Zone Geo Map
NST timezone map

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).

Daylight saving time clock moves forward for one hourEnd: Newfoundland Standard Time (NST) ended 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 local daylight time instead. Standard time ends annually on the second Sunday of March.

Daylight saving time clock moves back for one hourStart: Newfoundland Standard Time (NST) starts 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. Standard time starts annually on the first Sunday of November.

See upcoming clock changes worldwide.

NST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -0330 - basic
  • -03:30 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -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.
IANA/Olson: Reflects NST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • America/St_Johns
  • Canada/Newfoundland

Argentina Time

Offset: ART is 3 hours behind Greenwich Mean Time (GMT) and is used in South America

Countries using this time zone: Argentina

Principal Cities: The largest city in the ART time zone is Buenos Aires in Argentina, with about 2.891 million people. Other major cities in this time zone include Mar del Plata, Quilmes, La Plata, Moron.

Daylight Saving: Clocks in Argentina Time (ART) do not change for daylight saving time, so ART stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter; see upcoming clock changes worldwide.

ART Time Zone Geo Map
ART timezone map

ART representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -03 - basic short
  • -0300 - basic
  • -03:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -0300 - sign character (-) followed by a four digit time providing hours (03) and minutes (00) of the offset. Indicates an offset of three hours to the west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Papa - Military abbreviation for ART
  • P - short form of 'Papa'
Time zones with the GMT -3 offset:
  • ADT - Atlantic Daylight Time
  • PMT - Pierre & Miquelon Standard Time
  • PMST - Pierre & Miquelon Standard Time
  • AMST - Amazon Summer Time
  • ART - Argentina Time
  • BRT - Brasília time
  • CLST - Chile Summer Time
  • FKST - Falkland Islands Summer Time
  • GFT - French Guiana Time
  • P - Papa Time Zone
  • PYST - Paraguay Summer Time
  • SRT - Suriname Time
  • UYT - Uruguay Time