{
  "contest": {
    "id": "nzart-jock-white-field-day",
    "name": "Jock White Memorial Field Day",
    "sponsor": "NZART",
    "sponsor_home": "https://nzart.org.nz/",
    "country": "NZ",
    "summary": "NZART's branch field day: two evening-and-morning sessions on the last full weekend in February, 80 and 40 metres, run on New Zealand time.",
    "modes": [
      "SSB",
      "CW"
    ],
    "bands": [
      "80m",
      "40m"
    ],
    "exchange": "RS(T), a serial number starting at 001, and an NZART branch number (home stations use 00)",
    "power_categories": [
      {
        "name": "Open",
        "max_watts": 100
      },
      {
        "name": "QRP",
        "max_watts": 10
      }
    ],
    "log_format": "Cabrillo",
    "log_deadline_days": null,
    "log_submit_url": "",
    "timezone": "Pacific/Auckland",
    "local_rolling": false,
    "eligibility": {
      "scope": "worldwide",
      "verified": true,
      "note": "There is an entry category for 'Overseas stations in the Oceania Region', and contacts may be made 'with any other field, ZL home or overseas (Oceania) station'. In practice this is a New Zealand event with an Oceania fringe."
    },
    "active_from": null,
    "active_until": null,
    "note": "NZART SETS THIS ONE BY THE NEW ZEALAND CLOCK, NOT BY UTC: 1500-2400 Saturday and 0600-1500 Sunday NZDT. The UTC instants shown here therefore move with New Zealand daylight saving, unlike almost every other contest in this calendar. The QRP category is '5 Watts CW/10 Watts SSB maximum'; the 100W figure is NZART's overall limit. The log deadline is 'the Saturday which is four weeks after the Field Day Saturday' -- anchored to the Saturday rather than to either session's end -- so no interval is computed.",
    "verified": true,
    "rules_url": "https://nzart.org.nz/activities/contests/jwfd/",
    "rules_url_pattern": "",
    "rules_url_archived": "",
    "rules_url_checked": "2026-08-17",
    "source_note": "nzart.org.nz (Jock White Memorial Field Day rules): 'The last full weekend in February each year: on Saturday 1500-2400 NZDT and Sunday 0600-1500 NZDT. NOTE: when February only has three full weekends then field day will be held on Saturday 28th February and Sunday 1st March. This is to avoid a clash with the ARRL International CW contest. This will occur in 2026.' The exclusion is encoded exactly, not approximated: the last-full-weekend Saturday falls on February 21 if and only if February has 28 days and February 1 is a Sunday -- which is precisely the three-full-weekend case -- so exclude_dates [[2, 21]] pushes it to February 28 and reproduces NZART's own 2026 dates. 'Last Saturday in February' was tested and rejected: it diverges in a leap year beginning on a Saturday. Bands, modes and power: '40 and/or 80 metres, PHONE (SSB) and/or CW, 100 watts PEP maximum.' Exchange and log deadline as quoted in note."
  },
  "rule": {
    "plain": "Last full weekend of February, except when that falls on 21 February — then the weekend after",
    "raw": {
      "type": "nth_full_weekend",
      "month": 2,
      "n": -1,
      "exclude_dates": [
        [
          2,
          21
        ]
      ]
    },
    "start": {
      "day_offset": 0,
      "time": "1500",
      "wall_clock": true
    },
    "end": {
      "day_offset": 0,
      "time": "2400",
      "wall_clock": true
    },
    "sessions": [
      {
        "start": {
          "day_offset": 0,
          "time": "1500",
          "wall_clock": true
        },
        "end": {
          "day_offset": 0,
          "time": "2400",
          "wall_clock": true
        }
      },
      {
        "start": {
          "day_offset": 1,
          "time": "0600",
          "wall_clock": true
        },
        "end": {
          "day_offset": 1,
          "time": "1500",
          "wall_clock": true
        }
      }
    ]
  },
  "next": [
    {
      "contest_id": "nzart-jock-white-field-day",
      "name": "Jock White Memorial Field Day",
      "start": "2027-02-27T02:00:00Z",
      "end": "2027-02-27T11:00:00Z",
      "start_wall": "2027-02-27T15:00:00",
      "end_wall": "2027-02-28T00:00:00",
      "local_rolling": false,
      "timezone": "Pacific/Auckland",
      "duration_hours": 9,
      "modes": [
        "SSB",
        "CW"
      ],
      "submodes": [],
      "bands": [
        "80m",
        "40m"
      ],
      "bands_note": "",
      "sponsor": "NZART",
      "rules_url": "https://nzart.org.nz/activities/contests/jwfd/",
      "verified": true,
      "note": "NZART SETS THIS ONE BY THE NEW ZEALAND CLOCK, NOT BY UTC: 1500-2400 Saturday and 0600-1500 Sunday NZDT. The UTC instants shown here therefore move with New Zealand daylight saving, unlike almost every other contest in this calendar. The QRP category is '5 Watts CW/10 Watts SSB maximum'; the 100W figure is NZART's overall limit. The log deadline is 'the Saturday which is four weeks after the Field Day Saturday' -- anchored to the Saturday rather than to either session's end -- so no interval is computed.",
      "exchange": "RS(T), a serial number starting at 001, and an NZART branch number (home stations use 00)",
      "country": "NZ",
      "rules_url_archived": "",
      "rules_url_checked": "2026-08-17",
      "can_enter": true,
      "eligibility_scope": "worldwide",
      "eligibility_reason": "",
      "works": "everyone",
      "practical": "",
      "log_due": null,
      "uid": "nzart-jock-white-field-day-20270227T0200@contestcal",
      "start_date": "2027-02-27",
      "mode_families": [
        "CW",
        "SSB"
      ],
      "band_families": [
        "80m",
        "40m"
      ],
      "duration_bucket": "2-12"
    },
    {
      "contest_id": "nzart-jock-white-field-day",
      "name": "Jock White Memorial Field Day",
      "start": "2027-02-27T17:00:00Z",
      "end": "2027-02-28T02:00:00Z",
      "start_wall": "2027-02-28T06:00:00",
      "end_wall": "2027-02-28T15:00:00",
      "local_rolling": false,
      "timezone": "Pacific/Auckland",
      "duration_hours": 9,
      "modes": [
        "SSB",
        "CW"
      ],
      "submodes": [],
      "bands": [
        "80m",
        "40m"
      ],
      "bands_note": "",
      "sponsor": "NZART",
      "rules_url": "https://nzart.org.nz/activities/contests/jwfd/",
      "verified": true,
      "note": "NZART SETS THIS ONE BY THE NEW ZEALAND CLOCK, NOT BY UTC: 1500-2400 Saturday and 0600-1500 Sunday NZDT. The UTC instants shown here therefore move with New Zealand daylight saving, unlike almost every other contest in this calendar. The QRP category is '5 Watts CW/10 Watts SSB maximum'; the 100W figure is NZART's overall limit. The log deadline is 'the Saturday which is four weeks after the Field Day Saturday' -- anchored to the Saturday rather than to either session's end -- so no interval is computed.",
      "exchange": "RS(T), a serial number starting at 001, and an NZART branch number (home stations use 00)",
      "country": "NZ",
      "rules_url_archived": "",
      "rules_url_checked": "2026-08-17",
      "can_enter": true,
      "eligibility_scope": "worldwide",
      "eligibility_reason": "",
      "works": "everyone",
      "practical": "",
      "log_due": null,
      "uid": "nzart-jock-white-field-day-20270227T1700@contestcal",
      "start_date": "2027-02-27",
      "mode_families": [
        "CW",
        "SSB"
      ],
      "band_families": [
        "80m",
        "40m"
      ],
      "duration_bucket": "2-12"
    },
    {
      "contest_id": "nzart-jock-white-field-day",
      "name": "Jock White Memorial Field Day",
      "start": "2028-02-26T02:00:00Z",
      "end": "2028-02-26T11:00:00Z",
      "start_wall": "2028-02-26T15:00:00",
      "end_wall": "2028-02-27T00:00:00",
      "local_rolling": false,
      "timezone": "Pacific/Auckland",
      "duration_hours": 9,
      "modes": [
        "SSB",
        "CW"
      ],
      "submodes": [],
      "bands": [
        "80m",
        "40m"
      ],
      "bands_note": "",
      "sponsor": "NZART",
      "rules_url": "https://nzart.org.nz/activities/contests/jwfd/",
      "verified": true,
      "note": "NZART SETS THIS ONE BY THE NEW ZEALAND CLOCK, NOT BY UTC: 1500-2400 Saturday and 0600-1500 Sunday NZDT. The UTC instants shown here therefore move with New Zealand daylight saving, unlike almost every other contest in this calendar. The QRP category is '5 Watts CW/10 Watts SSB maximum'; the 100W figure is NZART's overall limit. The log deadline is 'the Saturday which is four weeks after the Field Day Saturday' -- anchored to the Saturday rather than to either session's end -- so no interval is computed.",
      "exchange": "RS(T), a serial number starting at 001, and an NZART branch number (home stations use 00)",
      "country": "NZ",
      "rules_url_archived": "",
      "rules_url_checked": "2026-08-17",
      "can_enter": true,
      "eligibility_scope": "worldwide",
      "eligibility_reason": "",
      "works": "everyone",
      "practical": "",
      "log_due": null,
      "uid": "nzart-jock-white-field-day-20280226T0200@contestcal",
      "start_date": "2028-02-26",
      "mode_families": [
        "CW",
        "SSB"
      ],
      "band_families": [
        "80m",
        "40m"
      ],
      "duration_bucket": "2-12"
    },
    {
      "contest_id": "nzart-jock-white-field-day",
      "name": "Jock White Memorial Field Day",
      "start": "2028-02-26T17:00:00Z",
      "end": "2028-02-27T02:00:00Z",
      "start_wall": "2028-02-27T06:00:00",
      "end_wall": "2028-02-27T15:00:00",
      "local_rolling": false,
      "timezone": "Pacific/Auckland",
      "duration_hours": 9,
      "modes": [
        "SSB",
        "CW"
      ],
      "submodes": [],
      "bands": [
        "80m",
        "40m"
      ],
      "bands_note": "",
      "sponsor": "NZART",
      "rules_url": "https://nzart.org.nz/activities/contests/jwfd/",
      "verified": true,
      "note": "NZART SETS THIS ONE BY THE NEW ZEALAND CLOCK, NOT BY UTC: 1500-2400 Saturday and 0600-1500 Sunday NZDT. The UTC instants shown here therefore move with New Zealand daylight saving, unlike almost every other contest in this calendar. The QRP category is '5 Watts CW/10 Watts SSB maximum'; the 100W figure is NZART's overall limit. The log deadline is 'the Saturday which is four weeks after the Field Day Saturday' -- anchored to the Saturday rather than to either session's end -- so no interval is computed.",
      "exchange": "RS(T), a serial number starting at 001, and an NZART branch number (home stations use 00)",
      "country": "NZ",
      "rules_url_archived": "",
      "rules_url_checked": "2026-08-17",
      "can_enter": true,
      "eligibility_scope": "worldwide",
      "eligibility_reason": "",
      "works": "everyone",
      "practical": "",
      "log_due": null,
      "uid": "nzart-jock-white-field-day-20280226T1700@contestcal",
      "start_date": "2028-02-26",
      "mode_families": [
        "CW",
        "SSB"
      ],
      "band_families": [
        "80m",
        "40m"
      ],
      "duration_bucket": "2-12"
    },
    {
      "contest_id": "nzart-jock-white-field-day",
      "name": "Jock White Memorial Field Day",
      "start": "2029-02-24T02:00:00Z",
      "end": "2029-02-24T11:00:00Z",
      "start_wall": "2029-02-24T15:00:00",
      "end_wall": "2029-02-25T00:00:00",
      "local_rolling": false,
      "timezone": "Pacific/Auckland",
      "duration_hours": 9,
      "modes": [
        "SSB",
        "CW"
      ],
      "submodes": [],
      "bands": [
        "80m",
        "40m"
      ],
      "bands_note": "",
      "sponsor": "NZART",
      "rules_url": "https://nzart.org.nz/activities/contests/jwfd/",
      "verified": true,
      "note": "NZART SETS THIS ONE BY THE NEW ZEALAND CLOCK, NOT BY UTC: 1500-2400 Saturday and 0600-1500 Sunday NZDT. The UTC instants shown here therefore move with New Zealand daylight saving, unlike almost every other contest in this calendar. The QRP category is '5 Watts CW/10 Watts SSB maximum'; the 100W figure is NZART's overall limit. The log deadline is 'the Saturday which is four weeks after the Field Day Saturday' -- anchored to the Saturday rather than to either session's end -- so no interval is computed.",
      "exchange": "RS(T), a serial number starting at 001, and an NZART branch number (home stations use 00)",
      "country": "NZ",
      "rules_url_archived": "",
      "rules_url_checked": "2026-08-17",
      "can_enter": true,
      "eligibility_scope": "worldwide",
      "eligibility_reason": "",
      "works": "everyone",
      "practical": "",
      "log_due": null,
      "uid": "nzart-jock-white-field-day-20290224T0200@contestcal",
      "start_date": "2029-02-24",
      "mode_families": [
        "CW",
        "SSB"
      ],
      "band_families": [
        "80m",
        "40m"
      ],
      "duration_bucket": "2-12"
    },
    {
      "contest_id": "nzart-jock-white-field-day",
      "name": "Jock White Memorial Field Day",
      "start": "2029-02-24T17:00:00Z",
      "end": "2029-02-25T02:00:00Z",
      "start_wall": "2029-02-25T06:00:00",
      "end_wall": "2029-02-25T15:00:00",
      "local_rolling": false,
      "timezone": "Pacific/Auckland",
      "duration_hours": 9,
      "modes": [
        "SSB",
        "CW"
      ],
      "submodes": [],
      "bands": [
        "80m",
        "40m"
      ],
      "bands_note": "",
      "sponsor": "NZART",
      "rules_url": "https://nzart.org.nz/activities/contests/jwfd/",
      "verified": true,
      "note": "NZART SETS THIS ONE BY THE NEW ZEALAND CLOCK, NOT BY UTC: 1500-2400 Saturday and 0600-1500 Sunday NZDT. The UTC instants shown here therefore move with New Zealand daylight saving, unlike almost every other contest in this calendar. The QRP category is '5 Watts CW/10 Watts SSB maximum'; the 100W figure is NZART's overall limit. The log deadline is 'the Saturday which is four weeks after the Field Day Saturday' -- anchored to the Saturday rather than to either session's end -- so no interval is computed.",
      "exchange": "RS(T), a serial number starting at 001, and an NZART branch number (home stations use 00)",
      "country": "NZ",
      "rules_url_archived": "",
      "rules_url_checked": "2026-08-17",
      "can_enter": true,
      "eligibility_scope": "worldwide",
      "eligibility_reason": "",
      "works": "everyone",
      "practical": "",
      "log_due": null,
      "uid": "nzart-jock-white-field-day-20290224T1700@contestcal",
      "start_date": "2029-02-24",
      "mode_families": [
        "CW",
        "SSB"
      ],
      "band_families": [
        "80m",
        "40m"
      ],
      "duration_bucket": "2-12"
    }
  ]
}