Convert Hawaii Standard Time to Newfoundland Standard Time
Instantly convert Hawaii Standard Time (HST) to Newfoundland Standard Time (NST) with our free online calculator.
Hawaii Standard Time
07:20:48 PM
Tue, Jun 23 (HST)
Newfoundland Standard Time
01:50:48 AM
Wed, Jun 24 (NST)
Convert a Specific Time
24-Hour Comparison
| HST | NST |
|---|---|
| 12:00 AM | 6.5:00 AM |
| 1:00 AM | 7.5:00 AM |
| 2:00 AM | 8.5:00 AM |
| 3:00 AM | 9.5:00 AM |
| 4:00 AM | 10.5:00 AM |
| 5:00 AM | 11.5:00 AM |
| 6:00 AM | 0.5:00 PM |
| 7:00 AM | 1.5:00 PM |
| 8:00 AM | 2.5:00 PM |
| 9:00 AM | 3.5:00 PM |
| 10:00 AM | 4.5:00 PM |
| 11:00 AM | 5.5:00 PM |
| 12:00 PM | 6.5:00 PM |
| 1:00 PM | 7.5:00 PM |
| 2:00 PM | 8.5:00 PM |
| 3:00 PM | 9.5:00 PM |
| 4:00 PM | 10.5:00 PM |
| 5:00 PM | 11.5:00 PM |
| 6:00 PM | 0.5:00 AM(+1d) |
| 7:00 PM | 1.5:00 AM(+1d) |
| 8:00 PM | 2.5:00 AM(+1d) |
| 9:00 PM | 3.5:00 AM(+1d) |
| 10:00 PM | 4.5:00 AM(+1d) |
| 11:00 PM | 5.5:00 AM(+1d) |
How to Convert Hawaii Standard Time to Newfoundland Standard Time
Formula
To convert Hawaii Standard Time (HST) to Newfoundland Standard Time (NST): Convert HST to NST
About Hawaii Standard Time (HST)
Hawaii Standard Time (HST, IANA: Pacific/Honolulu) is the time zone for the State of Hawaii and the Aleutian Islands of Alaska west of 169.5°W. HST is UTC-10:00 year-round and does not observe Daylight Saving Time per Hawaii Revised Statutes §1-31 (Hawaii opted out of the Uniform Time Act of 1966). When the US mainland switches to Daylight Saving Time in March, the offset from Hawaii to the West Coast (Pacific Time) becomes 3 hours instead of the standard 2 hours. Honolulu sees solar noon at approximately 12:30 PM HST in summer. HST is the same offset as Cook Island Time (CKT) and Tahiti Time (TAHT) in French Polynesia, allowing easy mental conversion across the central Pacific. Time-sensitive activities affected by HST include Pacific tsunami warning system coordination per NOAA NTWC, US military operations from Joint Base Pearl Harbor-Hickam, and the Mauna Kea astronomical observatories' nightly observing schedules.
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.