Time conversion

Convert Day to Julian year

1 day (d) equals 0.002737850787 julian year (a). Enter any value below to convert from d to a.

Enter a value and choose units. Results update instantly.

1 d = 0.0027378508 a

All Time units

From 1 d
UnitValue
Nanosecond ns 8.64e13
Microsecond μs 86,400,000,000
Millisecond ms 86,400,000
Second s 86,400
Minute min 1,440
Hour h 24
Day d 1
Week wk 0.1428571429
Average Gregorian month mo 0.0328548841
Julian year a 0.0027378508
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Formula

d to a conversion formula

Use this relationship for a direct conversion:

a = d x 0.002737850787

Worked example

2 d = 0.0054757016 a.

Use the Date Calculators for calendar months, leap years, daylight saving transitions, and business days.

Quick reference

Day to Julian year table

Day (d)Julian year (a)
0.010.0000273785
0.10.0002737851
10.0027378508
20.0054757016
50.0136892539
100.0273785079
250.0684462697
500.1368925394
1000.2737850787
1,0002.7378507871

From unit

About the day

Exactly 24 hours for elapsed-time conversion.

Symbol: d

To unit

About the julian year

Exactly 365.25 days in astronomy.

Symbol: a

Keep converting

Related conversions

Julian year to DayReverse this conversion Day to Millisecondd to msDay to Secondd to sDay to Minuted to minDay to Hourd to hDay to Weekd to wkDay to Average Gregorian monthd to mo

Source

Conversion standard

Definitions are checked against BIPM SI Brochure: Units of time. Calculations use full internal precision before display rounding.

View the complete time converter

Questions

d to a FAQ

How do you convert day to julian year?

Use the formula a = d x 0.002737850787. 1 day (d) equals 0.002737850787 julian year (a).

Is the d to a conversion exact?

Both unit definitions use exact factors. Only the displayed decimal may be rounded.