EVERYDAY
Time
Durations from nanoseconds to calendar-scale intervals.
Try a decimal, 1e-9, 1/3, or 5 1/2.
Result365.25 d1 a = 365.25 d
EVERYDAY · ENGINEERING · SCIENCE
a to d Converter
Convert Julian year (a) to day (d). Enter a value for an instant result, or use the examples and reverse conversion below.
520units ready to convert
HOW IT IS CALCULATED
Convert through second
Enter a Julian year value to calculate day with full internal precision before display rounding.
Display PrecisionAuto · 6 significant digits
Auto trims unnecessary zeroes and uses scientific notation for extreme magnitudes. Use Digits to set the display precision; calculations retain full precision.
QUICK REFERENCE
All units in this quantity
| Unit | Symbol | Converted value |
|---|---|---|
| nanosecondfrom a | ns | 3.15576e16 |
| microsecondfrom a | µs | 31557600000000 |
| millisecondfrom a | ms | 31557600000 |
| secondfrom a | s | 31557600 |
| minutefrom a | min | 525960 |
| hourfrom a | h | 8766 |
| dayfrom a | d | 365.25 |
| weekfrom a | wk | 52.1786 |
| fortnightfrom a | fortnight | 26.0893 |
| Julian yearfrom a | a | 1 |
SI symbols follow international notation. U.S. and Imperial measures are labelled separately where their values differ.
a to d Conversion Reference
Julian Year (a) and day (d) are units of time. Use this page to convert in either direction.
Conversion Examples
| Julian Year (a) | Day (d) |
|---|---|
| 1 a | 365.25 d |
| 5 a | 1826.25 d |
| 10 a | 3652.5 d |
| 100 a | 36525 d |
Examples are rounded to 6 significant digits. The interactive converter retains full calculation precision; change Display Precision to see more digits.