Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
Time Conversion Tool

Use this tool to convert from calendar date/time format to Julian date and vice versa. Optionally convert between selected world time zones and determine the day-of-week for the specified date.

Enter a calendar date and time
(year-month-day hour:minute:second)...
Date and Time
  using calendar date and time

or Enter a Julian date ...
UT   using Julian date
   

Equivalent Times


Input Time Zone: UT
-------------------------------------------------------
A.D. 2021-Jan-16 10:12:25.00 = A.D. 2021-Jan-16.4252894
A.D.  2021-01-16 10:12:25.00 = A.D.  2021-01-16.4252894
A.D.   2021--016 10:12:25.00 = A.D.   2021--016.4252894

Day-of-Week: Saturday


Alternate Time Zone: UT-8 (PST)
-------------------------------------------------------
A.D. 2021-Jan-16 02:12:25.00 = A.D. 2021-Jan-16.0919560
A.D.  2021-01-16 02:12:25.00 = A.D.  2021-01-16.0919560
A.D.   2021--016 02:12:25.00 = A.D.   2021--016.0919560

Day-of-Week: Saturday

Julian Date
------------------
2459230.9252894 UT
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jan-16 10:12 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin