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Julian Date Converter

Convert date and time to Julian Date, Modified Julian Date, Unix timestamp, ISO 8601, and Julian calendar. Instant multi-system calendar conversion.

Input

Choose the source format and enter your date, time, or numeric value.

Input Format

Time Zone

Date

Hour

Minute

Second

Input → Julian Date (JD) · J2000.0 = JD 2451545.0

Output

Pick the target calendar system for your result.

Valid

Output Format

Julian Date (JD)2451545.00000000

Gregorian datetime2000-01-01 12:00:00 UTC

Modified Julian Date (MJD)51544.50000000

Julian Date (JD)JDN 2451545 · MJD 51544.50000

2451545.00000000

Convert date and time to Julian Date, Modified Julian Date, Unix timestamp, ISO 8601, and Julian calendar. Instant multi-system calendar conversion.