Astronomical Time
By Larry McNish
http://members.shaw.ca/rlmcnish/

Longitude: Deg: Min: Sec: West East     Night Vision Mode


Local PC Time
Coordinated Universal Time (UTC)

Local Sidereal Time (LST)

(LST based on Longitude setting)

Greenwich Sidereal Time (GST)

(UTC and GST are based on PC settings)
Julian Date

The accuracy of the displays depends on the correct PC time setting, the correct PC Time Zone setting, and the correct Longitude setting.
To set your PC clock accurately you can use an Internet Time Service.

Copyright 2004-2012, Larry McNish All rights reserved.
Some of the JavaScript used to calculate these values was written by and is Copyright © Peter Hayes 2001-2005.
His website can be found at http://www.aphayes.pwp.blueyonder.co.uk/
Page last updated: Feb 10, 2012