Years with Same Calendar as 1830
The year 1830 had 365 days and started on a Friday (Papua New Guinea, Gregorian calendar).
This country introduced the modern Gregorian calendar in year 1752, so previous years are based on the Julian calendar. In that calendar system, a Leap Day was added every four years, without the exceptions defined in today's Gregorian calendar. This affects the selection of years listed here.
| Years with same starting weekday and equal number of days to 1830 | ||
|---|---|---|
| Year | Compared to year 1830 | Since last |
| 1731 | 99 years before | |
| 1742 | 88 years before | + 11 years |
| Papua New Guinea adopted today's Gregorian calendar in 1752. All previous years are based on the Julian calendar. | ||
| 1762 | 68 years before | + 20 years |
| 1773 | 57 years before | + 11 years |
| 1779 | 51 years before | + 6 years |
| 1790 | 40 years before | + 11 years |
| 1802 | 28 years before | + 12 years |
| 1813 | 17 years before | + 11 years |
| 1819 | 11 years before | + 6 years |
| 1830 | selected year | + 11 years |
| 1841 | 11 years after | + 11 years |
| 1847 | 17 years after | + 6 years |
| 1858 | 28 years after | + 11 years |
| 1869 | 39 years after | + 11 years |
| 1875 | 45 years after | + 6 years |
| 1886 | 56 years after | + 11 years |
| 1897 | 67 years after | + 11 years |
| 1909 | 79 years after | + 12 years |
| 1915 | 85 years after | + 6 years |
| 1926 | 96 years after | + 11 years |
19 years share the calendar of year 1830 in the 200-year time span from 1730 to 1929.
Note that holidays will not match exactly. Selected year is highlighted.
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