Convert Greenwich Mean Time to Newfoundland Standard Time
Instantly convert Greenwich Mean Time (GMT) to Newfoundland Standard Time (NST) with our free online calculator.
Greenwich Mean Time
05:20:58 AM
Wed, Jun 24 (GMT)
Newfoundland Standard Time
01:50:58 AM
Wed, Jun 24 (NST)
Convert a Specific Time
24-Hour Comparison
| GMT | NST |
|---|---|
| 12:00 AM | 8.5:00 PM(-1d) |
| 1:00 AM | 9.5:00 PM(-1d) |
| 2:00 AM | 10.5:00 PM(-1d) |
| 3:00 AM | 11.5:00 PM(-1d) |
| 4:00 AM | 0.5:00 AM |
| 5:00 AM | 1.5:00 AM |
| 6:00 AM | 2.5:00 AM |
| 7:00 AM | 3.5:00 AM |
| 8:00 AM | 4.5:00 AM |
| 9:00 AM | 5.5:00 AM |
| 10:00 AM | 6.5:00 AM |
| 11:00 AM | 7.5:00 AM |
| 12:00 PM | 8.5:00 AM |
| 1:00 PM | 9.5:00 AM |
| 2:00 PM | 10.5:00 AM |
| 3:00 PM | 11.5:00 AM |
| 4:00 PM | 0.5:00 PM |
| 5:00 PM | 1.5:00 PM |
| 6:00 PM | 2.5:00 PM |
| 7:00 PM | 3.5:00 PM |
| 8:00 PM | 4.5:00 PM |
| 9:00 PM | 5.5:00 PM |
| 10:00 PM | 6.5:00 PM |
| 11:00 PM | 7.5:00 PM |
How to Convert Greenwich Mean Time to Newfoundland Standard Time
Formula
To convert Greenwich Mean Time (GMT) to Newfoundland Standard Time (NST): Convert GMT to NST
About Greenwich Mean Time (GMT)
Greenwich Mean Time (GMT, IANA: Europe/London) is the historic and current civil time of the United Kingdom (during winter), Ireland (during winter), Portugal mainland (during winter), Iceland (year-round), and most West African countries. GMT is set at UTC+0 — the time on the Prime Meridian (0° longitude) running through the Royal Observatory in Greenwich, southeast London. Established as the global time reference by the 1884 International Meridian Conference in Washington DC, GMT served as the world's primary civil-time reference from 1884 until 1972 when UTC (Coordinated Universal Time) was adopted as the new precision standard. The UK switches from GMT to British Summer Time (BST = UTC+1) at 01:00 GMT on the last Sunday of March and back to GMT at 02:00 BST on the last Sunday of October per EU Directive 2000/84/EC (UK retained this schedule after Brexit). GMT affects: London Stock Exchange (LSE) trading hours, BBC World Service broadcast time-stamps, all aviation NOTAMs and weather METARs which use UTC = GMT, and ICAO + IMO worldwide maritime/aviation coordination.
About Newfoundland Standard Time (NST)
Newfoundland Standard Time (NST, IANA: America/St_Johns) is one of the world's few time zones with a 30-minute offset, set at UTC-3:30. NST is observed exclusively in the Canadian province of Newfoundland and Labrador (the island portion of the province and southeastern Labrador), serving approximately 500,000 residents. The 30-minute offset is preserved from the 1884 International Meridian Conference compromise that established time zones — Newfoundland Time was chosen because the island's longitudinal position (52.7°W central meridian for St. John's) falls between Atlantic and Eastern time zones, and the province's parliament voted to keep its own dedicated offset rather than align with neighboring provinces. NST observes Daylight Saving Time per the Canadian aligned schedule (switching to NDT = UTC-2:30 from March to November). Other 30/45-minute offset zones globally: India (IST UTC+5:30), Nepal (UTC+5:45), Myanmar (UTC+6:30), Iran (UTC+3:30), Afghanistan (UTC+4:30), Sri Lanka (UTC+5:30), Marquesas (UTC-9:30). NST affects: cod-fishing and offshore oil platform operations on the Grand Banks, ferry schedules to Cape Breton, and the historic Cabot Tower St. John's noon-gun.