{
 "title": "Free BaZi calculators compared on 14 edge cases",
 "tested": "2026-10-02",
 "published": "2026-10-02",
 "selection": "Free BaZi calculators on Google's first page for 'bazi calculator' that work without an account and whose terms do not restrict automated access or reuse of results. Others are not included.",
 "legend": {
  "T": "Matches the true-solar-time reference",
  "C": "Matches the clock-time chart (no solar-time correction)",
  "B": "Matches the clock time read as Beijing time",
  "D": "Matches none of the three",
  "": "Not tested"
 },
 "cases": {
  "C01": {
   "city_en": "Beijing, China",
   "clock": "2000-02-04 22:00",
   "tz": "Asia/Shanghai",
   "tst_time": "2000-02-04 21:31",
   "tst1": "庚辰 戊寅 壬辰 辛亥",
   "tst2": "庚辰 戊寅 壬辰 辛亥",
   "std1": "庚辰 戊寅 壬辰 辛亥",
   "std2": "庚辰 戊寅 壬辰 辛亥",
   "naive": "庚辰 戊寅 壬辰 辛亥"
  },
  "C02": {
   "city_en": "Perth, Australia",
   "clock": "2000-07-10 13:15",
   "tz": "Australia/Perth",
   "tst_time": "2000-07-10 12:53",
   "tst1": "庚辰 癸未 己巳 庚午",
   "tst2": "庚辰 癸未 己巳 庚午",
   "std1": "庚辰 癸未 己巳 辛未",
   "std2": "庚辰 癸未 己巳 辛未",
   "naive": "庚辰 癸未 己巳 辛未"
  },
  "C03": {
   "city_en": "Shanghai, China",
   "clock": "1998-03-10 23:30",
   "tz": "Asia/Shanghai",
   "tst_time": "1998-03-10 23:25",
   "tst1": "戊寅 乙卯 丁巳 庚子",
   "tst2": "戊寅 乙卯 丙辰 庚子",
   "std1": "戊寅 乙卯 丁巳 庚子",
   "std2": "戊寅 乙卯 丙辰 庚子",
   "naive": "戊寅 乙卯 丁巳 庚子"
  },
  "C04": {
   "city_en": "Beijing, China",
   "clock": "1988-07-01 09:10",
   "tz": "Asia/Shanghai",
   "tst_time": "1988-07-01 07:51",
   "tst1": "戊辰 戊午 丁巳 甲辰",
   "tst2": "戊辰 戊午 丁巳 甲辰",
   "std1": "戊辰 戊午 丁巳 乙巳",
   "std2": "戊辰 戊午 丁巳 乙巳",
   "naive": "戊辰 戊午 丁巳 乙巳"
  },
  "C05": {
   "city_en": "Beijing, China",
   "clock": "1988-09-11 01:30",
   "tz": "Asia/Shanghai",
   "tst_time": "1988-09-11 00:18",
   "tst1": "戊辰 辛酉 己巳 甲子",
   "tst2": "戊辰 辛酉 己巳 甲子",
   "std1": "戊辰 辛酉 己巳 乙丑",
   "std2": "戊辰 辛酉 己巳 乙丑",
   "naive": "戊辰 辛酉 己巳 乙丑"
  },
  "C05b": {
   "city_en": "Beijing, China",
   "clock": "1988-09-11 01:30",
   "tz": "Asia/Shanghai",
   "tst_time": "1988-09-11 01:18",
   "tst1": "戊辰 辛酉 己巳 乙丑",
   "tst2": "戊辰 辛酉 己巳 乙丑",
   "std1": "戊辰 辛酉 己巳 乙丑",
   "std2": "戊辰 辛酉 己巳 乙丑",
   "naive": "戊辰 辛酉 己巳 乙丑"
  },
  "C06": {
   "city_en": "New York, USA",
   "clock": "2000-02-04 10:00",
   "tz": "America/New_York",
   "tst_time": "2000-02-04 09:50",
   "tst1": "庚辰 戊寅 壬辰 乙巳",
   "tst2": "庚辰 戊寅 壬辰 乙巳",
   "std1": "庚辰 戊寅 壬辰 乙巳",
   "std2": "庚辰 戊寅 壬辰 乙巳",
   "naive": "己卯 丁丑 壬辰 乙巳"
  },
  "C07": {
   "city_en": "Beijing, China",
   "clock": "2024-05-05 08:09",
   "tz": "Asia/Shanghai",
   "tst_time": "2024-05-05 07:57",
   "tst1": "甲辰 戊辰 己巳 戊辰",
   "tst2": "甲辰 戊辰 己巳 戊辰",
   "std1": "甲辰 戊辰 己巳 戊辰",
   "std2": "甲辰 戊辰 己巳 戊辰",
   "naive": "甲辰 戊辰 己巳 戊辰"
  },
  "C08": {
   "city_en": "Urumqi, China",
   "clock": "1990-07-01 12:00",
   "tz": "Asia/Shanghai",
   "tst_time": "1990-07-01 08:46",
   "tst1": "庚午 壬午 丁卯 甲辰",
   "tst2": "庚午 壬午 丁卯 甲辰",
   "std1": "庚午 壬午 丁卯 丙午",
   "std2": "庚午 壬午 丁卯 丙午",
   "naive": "庚午 壬午 丁卯 丙午"
  },
  "C08b": {
   "city_en": "Urumqi, China",
   "clock": "1990-07-01 12:00",
   "tz": "Asia/Urumqi",
   "tst_time": "1990-07-01 11:46",
   "tst1": "庚午 壬午 丁卯 丙午",
   "tst2": "庚午 壬午 丁卯 丙午",
   "std1": "庚午 壬午 丁卯 丙午",
   "std2": "庚午 壬午 丁卯 丙午",
   "naive": "庚午 壬午 丁卯 丙午"
  },
  "C09": {
   "city_en": "Sydney, Australia",
   "clock": "2000-01-10 12:00",
   "tz": "Australia/Sydney",
   "tst_time": "2000-01-10 10:57",
   "tst1": "己卯 丁丑 丁卯 乙巳",
   "tst2": "己卯 丁丑 丁卯 乙巳",
   "std1": "己卯 丁丑 丁卯 丙午",
   "std2": "己卯 丁丑 丁卯 丙午",
   "naive": "己卯 丁丑 丁卯 丙午"
  },
  "C10": {
   "city_en": "Auckland, New Zealand",
   "clock": "2000-01-01 00:30",
   "tz": "Pacific/Auckland",
   "tst_time": "1999-12-31 23:06",
   "tst1": "己卯 丙子 戊午 壬子",
   "tst2": "己卯 丙子 丁巳 壬子",
   "std1": "己卯 丙子 戊午 壬子",
   "std2": "己卯 丙子 戊午 壬子",
   "naive": "己卯 丙子 戊午 壬子"
  },
  "C11": {
   "city_en": "Shanghai, China",
   "clock": "1945-07-01 12:00",
   "tz": "Asia/Shanghai",
   "tst_time": "1945-07-01 11:02",
   "tst1": "乙酉 壬午 辛未 甲午",
   "tst2": "乙酉 壬午 辛未 甲午",
   "std1": "乙酉 壬午 辛未 甲午",
   "std2": "乙酉 壬午 辛未 甲午",
   "naive": "乙酉 壬午 辛未 甲午"
  },
  "C12": {
   "city_en": "Singapore",
   "clock": "1980-01-01 12:00",
   "tz": "Asia/Singapore",
   "tst_time": "1980-01-01 11:22",
   "tst1": "己未 丙子 癸酉 戊午",
   "tst2": "己未 丙子 癸酉 戊午",
   "std1": "己未 丙子 癸酉 戊午",
   "std2": "己未 丙子 癸酉 戊午",
   "naive": "己未 丙子 癸酉 戊午"
  }
 },
 "sites": [
  {
   "site": "fsinmotion.com",
   "url": "https://fsinmotion.com/bazi-calculator/",
   "tested": "2026-10-02",
   "status": "complete",
   "mode": "Embedded Chinese Metasoft widget. Inputs: date, hour, minute and sex. No birthplace, time zone, daylight-saving or solar-time input.",
   "notes": [
    "Clock time is used as entered.",
    "The day changes at midnight.",
    "One input covers both 01:30s in C05 and C05b."
   ],
   "caseNotes": {
    "C06": "Year 己卯, month 丁丑: the Start of Spring is compared with the clock time as if it were China time."
   },
   "results": {
    "C01": "庚辰 戊寅 壬辰 辛亥",
    "C02": "庚辰 癸未 己巳 辛未",
    "C03": "戊寅 乙卯 丙辰 庚子",
    "C04": "戊辰 戊午 丁巳 乙巳",
    "C05": "戊辰 辛酉 己巳 乙丑",
    "C05b": "戊辰 辛酉 己巳 乙丑",
    "C06": "己卯 丁丑 壬辰 乙巳",
    "C07": "甲辰 戊辰 己巳 戊辰",
    "C08": "庚午 壬午 丁卯 丙午",
    "C08b": "庚午 壬午 丁卯 丙午",
    "C09": "己卯 丁丑 丁卯 丙午",
    "C10": "己卯 丙子 戊午 壬子",
    "C11": "乙酉 壬午 辛未 甲午",
    "C12": "己未 丙子 癸酉 戊午"
   },
   "class": {
    "C01": "T",
    "C02": "C",
    "C03": "T",
    "C04": "C",
    "C05": "C",
    "C05b": "T",
    "C06": "B",
    "C07": "T",
    "C08": "C",
    "C08b": "T",
    "C09": "C",
    "C10": "T",
    "C11": "T",
    "C12": "T"
   }
  },
  {
   "site": "mingshu.art",
   "url": "https://www.mingshu.art/tools/wu-xing-chart",
   "tested": "2026-10-02",
   "status": "complete",
   "mode": "Year, month, day and whole hour. No minutes, birthplace, time zone, daylight-saving or solar-time input.",
   "notes": [
    "Same results as the Chinese Metasoft widget on every case.",
    "Minutes cannot be entered (C03 23:30 became 23:00; C07 08:09 became 08:00).",
    "The day changes at midnight."
   ],
   "caseNotes": {
    "C06": "Year 己卯, month 丁丑, as with the Chinese Metasoft widget."
   },
   "results": {
    "C01": "庚辰 戊寅 壬辰 辛亥",
    "C02": "庚辰 癸未 己巳 辛未",
    "C03": "戊寅 乙卯 丙辰 庚子",
    "C04": "戊辰 戊午 丁巳 乙巳",
    "C05": "戊辰 辛酉 己巳 乙丑",
    "C05b": "戊辰 辛酉 己巳 乙丑",
    "C06": "己卯 丁丑 壬辰 乙巳",
    "C07": "甲辰 戊辰 己巳 戊辰",
    "C08": "庚午 壬午 丁卯 丙午",
    "C08b": "庚午 壬午 丁卯 丙午",
    "C09": "己卯 丁丑 丁卯 丙午",
    "C10": "己卯 丙子 戊午 壬子",
    "C11": "乙酉 壬午 辛未 甲午",
    "C12": "己未 丙子 癸酉 戊午"
   },
   "class": {
    "C01": "T",
    "C02": "C",
    "C03": "T",
    "C04": "C",
    "C05": "C",
    "C05b": "T",
    "C06": "B",
    "C07": "T",
    "C08": "C",
    "C08b": "T",
    "C09": "C",
    "C10": "T",
    "C11": "T",
    "C12": "T"
   }
  },
  {
   "site": "mingli.info",
   "url": "https://www.mingli.info/bazi",
   "tested": "2026-10-02",
   "status": "complete",
   "mode": "Birthplace from the site's list; time zone and daylight saving filled in automatically ('Auto UTC'); local solar time on (default).",
   "notes": [
    "The day changes at midnight.",
    "No choice between the two 01:30s in C05 and C05b."
   ],
   "caseNotes": {
    "C05": "The chart parameters list daylight saving and a −69.6-minute correction (about 00:20), but the hour pillar shown is 乙丑 (01:00–03:00).",
    "C08": "'Auto UTC' sets Ürümqi to UTC+6, so the result is the Xinjiang-time chart. Selecting UTC+8 changed the on-page preview, but the chart in our run still used UTC+6.",
    "C09": "Run twice. The chart parameters list UTC+11, daylight saving and a −63.0-minute correction (10:57), but the hour pillar shown is 丙午 (11:00–13:00).",
    "C12": "UTC+7:30 applied automatically."
   },
   "results": {
    "C01": "庚辰 戊寅 壬辰 辛亥",
    "C02": "庚辰 癸未 己巳 庚午",
    "C03": "戊寅 乙卯 丙辰 庚子",
    "C04": "戊辰 戊午 丁巳 甲辰",
    "C05": "戊辰 辛酉 己巳 乙丑",
    "C05b": "戊辰 辛酉 己巳 乙丑",
    "C06": "庚辰 戊寅 壬辰 乙巳",
    "C07": "甲辰 戊辰 己巳 戊辰",
    "C08": "庚午 壬午 丁卯 丙午",
    "C08b": "庚午 壬午 丁卯 丙午",
    "C09": "己卯 丁丑 丁卯 丙午",
    "C10": "己卯 丙子 丁巳 壬子",
    "C11": "乙酉 壬午 辛未 甲午",
    "C12": "己未 丙子 癸酉 戊午"
   },
   "class": {
    "C01": "T",
    "C02": "T",
    "C03": "T",
    "C04": "T",
    "C05": "C",
    "C05b": "T",
    "C06": "T",
    "C07": "T",
    "C08": "C",
    "C08b": "T",
    "C09": "C",
    "C10": "T",
    "C11": "T",
    "C12": "T"
   }
  },
  {
   "site": "ba-zi.ai",
   "url": "https://www.ba-zi.ai/en/calculator",
   "tested": "2026-10-02",
   "status": "complete",
   "mode": "Birth region from the site's menu, or a time zone from its IANA list; 'Adjust for true solar time' turned on (off by default) with the city from its list, or coordinates typed in when the city was not listed (C08b, C10).",
   "notes": [
    "The site states that the day changes at 23:00.",
    "Australian and New Zealand daylight saving and Singapore’s 1980 UTC+7:30 were applied.",
    "China's historical daylight saving was not removed, in the Mainland China preset or the Asia/Shanghai option: chart times for C04, C08 and C11 are one hour after the reference solar time. C04 and C11 stay in the same two-hour block."
   ],
   "caseNotes": {
    "C05": "No choice between the two 01:30s; the result equals C05b.",
    "C06": "Chart time 09:50 New York solar time, with year 己卯 and month 丁丑. The Start of Spring 2000 was 07:40 New York time.",
    "C08": "Chart time 09:46; reference 08:46."
   },
   "results": {
    "C01": "庚辰 戊寅 壬辰 辛亥",
    "C02": "庚辰 癸未 己巳 庚午",
    "C03": "戊寅 乙卯 丁巳 庚子",
    "C04": "戊辰 戊午 丁巳 甲辰",
    "C05": "戊辰 辛酉 己巳 乙丑",
    "C05b": "戊辰 辛酉 己巳 乙丑",
    "C06": "己卯 丁丑 壬辰 乙巳",
    "C07": "甲辰 戊辰 己巳 戊辰",
    "C08": "庚午 壬午 丁卯 乙巳",
    "C08b": "庚午 壬午 丁卯 丙午",
    "C09": "己卯 丁丑 丁卯 乙巳",
    "C10": "己卯 丙子 戊午 壬子",
    "C11": "乙酉 壬午 辛未 甲午",
    "C12": "己未 丙子 癸酉 戊午"
   },
   "class": {
    "C01": "T",
    "C02": "T",
    "C03": "T",
    "C04": "T",
    "C05": "C",
    "C05b": "T",
    "C06": "B",
    "C07": "T",
    "C08": "D",
    "C08b": "T",
    "C09": "T",
    "C10": "T",
    "C11": "T",
    "C12": "T"
   }
  }
 ]
}