About Julian Date Calculator
Calculate the Julian Date from Gregorian Calendar Date or vice versa. A small but useful tool for the Space Mission Analyst. The Julian Date Calculator gives the user a simple and quick way to convert between Coordinated...
Calculate the Julian Date from Gregorian Calendar Date or vice versa. A small but useful tool for the Space Mission Analyst.
The Julian Date Calculator gives the user a simple and quick way to convert between Coordinated Universal Time (UTC) in the Gregorian Calendar to the Julian Date as well as the following selection of additional epochs and time systems:
- Modified Julian Date
- Modified Julian Date 2000
- GMAT Modified Julian Date
- Reduced Julian Date
- Truncated Julian Date (NIST and NASA)
- Dublin Julian Day
- Lilian Day Number
- ANSI Date
- Rata Die
- Unix Time
- RAMSES Time
- GPS Time
The Julian date (JD) is the number of days and fractions of a day since noon January 1, 4713 BC at Greenwich. The Modified Julian Date (MJD) has an offset of 2,400,000.5 days from the Julian Date and hence starts at midnight November 17, 1858. The Julian Date is often used for scientific time measurement by the astronomy community and was introduced to provide a single system of dates that could be used when working with different calendars.
Sep 25, 2017
Version 1.6
This app has been updated by Apple to display the Apple Watch app icon.
Updated for iOS 11.0.
Added:
- Modified Julian date 2000: Its initial epoch is at noon (12:00) proleptic Coordinated Universal Time (UTC) on January 1, 2000. It is commonly used in the space industry.
- GMAT Modified Julian Date: Its initial epoch starts at noon (12:00) proleptic Coordinated Universal Time (UTC) on January 5, 1942. It is used in the General Mission Analysis Tool developed by NASA.
- Leap seconds introduced June 30th 2015 and December 31st 2016
Previous Versions
Here you can find the changelog of Julian Date Calculator since it was posted on our website on 2016-10-15 18:38:45.
The latest version is 1.6 and it was updated on 2024-04-22 23:38:18. See below the changes in each version.
Julian Date Calculator version 1.6
Updated At: 2017-09-25
Changes: Sep 25, 2017
Version 1.6
This app has been updated by Apple to display the Apple Watch app icon.
Updated for iOS 11.0.
Added:
- Modified Julian date 2000: Its initial epoch is at noon (12:00) proleptic Coordinated Universal Time (UTC) on January 1, 2000. It is commonly used in the space industry.
- GMAT Modified Julian Date: Its initial epoch starts at noon (12:00) proleptic Coordinated Universal Time (UTC) on January 5, 1942. It is used in the General Mission Analysis Tool developed by NASA.
- Leap seconds introduced June 30th 2015 and December 31st 2016
Julian Date Calculator version 1.5
Updated At: 2010-02-27
Disclaimer
Official App Store Link
We do not host Julian Date Calculator on our servers. We did not scan it for viruses, adware, spyware or other type of malware. This app is hosted by Apple and passed their terms and conditions to be listed there. We recommend caution when installing it.
The App Store link for Julian Date Calculator is provided to you by apps112.com without any warranties, representations or guarantees of any kind, so access it at your own risk.
If you have questions regarding this particular app contact the publisher directly. For questions about the functionalities of apps112.com contact us.
