Conversion number between year (Julian) [a, y, or yr] and day [d] is 365.25. This means, that year (Julian) is bigger unit than day.
Switch to reverse conversion:
from day to year (Julian) conversion
| [a, y, or yr] |
Result in day
?If conversion between year (Julian) to second and second to day is exactly definied, high precision conversion from year (Julian) to day is enabled.
Decimal places: (0-800)
year (Julian)| Start value: | [year (Julian)] |
| Step size | [year (Julian)] |
| How many lines? | (max 100) |
| year (Julian) | day |
|---|---|
| 0 | 0 |
| 10 | 3652.5 |
| 20 | 7305 |
| 30 | 10957.5 |
| 40 | 14610 |
| 50 | 18262.5 |
| 60 | 21915 |
| 70 | 25567.5 |
| 80 | 29220 |
| 90 | 32872.5 |
| 100 | 36525 |
| 110 | 40177.5 |
Definition of year (Julian) unit: = 365.25 d average. The basic calendar year has 365 days, but in fact the Earth needs a little more time around the sun. The Julian calendar compensated this with leap year (every fourth year had 366 days). According to the formula, a Julian year has 365 + 1/4 = 365.25 days. But even with this compensation, the astronomical year slip 0.78 days every 100 years into real seasons. Therefore, most countries have moved to the Gregorian calendar introduced in 1582.
Definition of day unit: = 24 h = 1440 min. One day (solar day) is period of time from noon to noon = 24 hours. A solar day is the time it takes for the Earth to rotate about its axis so that the Sun appears in the same position in the sky. 24 [h] × 3600 [s] = 86.4 [ks] = 86400 [s]
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