Years with Same Calendar as 1980 – Extended Range
The year 1980 had 366 days and started on a Tuesday (Oman, Gregorian calendar).
This country introduced the modern Gregorian calendar in year 1582, 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 1980 | ||
|---|---|---|
| Year | Compared to year 1980 | Since last |
| 1404 | 576 years before | |
| 1432 | 548 years before | + 28 years |
| 1460 | 520 years before | + 28 years |
| 1488 | 492 years before | + 28 years |
| 1516 | 464 years before | + 28 years |
| 1544 | 436 years before | + 28 years |
| 1572 | 408 years before | + 28 years |
| Oman adopted today's Gregorian calendar in 1582. All previous years are based on the Julian calendar. | ||
| 1608 | 372 years before | + 36 years |
| 1636 | 344 years before | + 28 years |
| 1664 | 316 years before | + 28 years |
| 1692 | 288 years before | + 28 years |
| 1704 | 276 years before | + 12 years |
| 1732 | 248 years before | + 28 years |
| 1760 | 220 years before | + 28 years |
| 1788 | 192 years before | + 28 years |
| 1828 | 152 years before | + 40 years |
| 1856 | 124 years before | + 28 years |
| 1884 | 96 years before | + 28 years |
| 1924 | 56 years before | + 40 years |
| 1952 | 28 years before | + 28 years |
| 1980 | selected year | + 28 years |
| 2008 | 28 years after | + 28 years |
| 2036 | 56 years after | + 28 years |
| 2064 | 84 years after | + 28 years |
| 2092 | 112 years after | + 28 years |
| 2104 | 124 years after | + 12 years |
| 2132 | 152 years after | + 28 years |
| 2160 | 180 years after | + 28 years |
| 2188 | 208 years after | + 28 years |
| 2228 | 248 years after | + 40 years |
| 2256 | 276 years after | + 28 years |
| 2284 | 304 years after | + 28 years |
| 2324 | 344 years after | + 40 years |
| 2352 | 372 years after | + 28 years |
| 2380 | 400 years after | + 28 years |
34 years share the calendar of year 1980 in the 1000-year time span from 1400 to 2399.
Note that holidays will not match exactly. Selected year is highlighted.
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