Unix Timestamp to Julian Day

Convert unix (Unix) to jd (JD) with formulas, examples, and conversion tables.

Unix
JD
1 Unix = 2440587.5 JD
Full precision:2440587.5 JD
Step-by-Step Solution

To convert 1 unix to jd, we multiply by 1 because one unix timestamp equals exactly 1 jd.

1 unix timestamp = 1 jd

Since each unix timestamp contains 1 jd, we multiply our value by this factor:

1 × 1 = 2440587.5 jd

So 1 unix = 2440587.5 jd.

✓Quick check: 2440587.5 ÷ 1 = 1 unix
↔ Julian Day to Unix Timestamp

How to Convert Unix to JD

To convert unix to jd, multiply the value by 1.

The Formula

JD = Unix × 1

Key Fact

1 unix timestamp = 1 jd

Tip: To convert jd back to unix, divide by 1.

Example Conversions

Example 1: 1 Unix = 2440587.5 JD
1 × 1 = 2440587.5
Example 2: 5 Unix = 2440587.5 JD
5 × 1 = 2440587.5
Example 3: 10 Unix = 2440587.5 JD
10 × 1 = 2440587.5

Unix to JD Table

UnixJD
0 Unix2440587.5 JD
86400 Unix2440588.5 JD
604800 Unix2440594.5 JD
1765116783 Unix2461017.09 JD

1 Unix Timestamp in Other Units

Unit1 Unix =
Unix Timestamp to ISO 86011 ISO
Unix Timestamp to Julian Day2440587.5 JD
Unix Timestamp to Modified Julian Day40587 MJD
Unix Timestamp to Excel Date25569 Excel

Related Conversions

Julian Day to Unix TimestampUnix Timestamp to Excel DateExcel Date to Unix TimestampUnix Timestamp to Modified Julian DayModified Julian Day to Unix Timestamp