Created
May 24, 2012 16:40
-
-
Save christopherscott/2782634 to your computer and use it in GitHub Desktop.
Convert Excel date values to JavaScript date objects
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| // Convert Excel dates into JS date objects | |
| // | |
| // @param excelDate {Number} | |
| // @return {Date} | |
| function getJsDateFromExcel(excelDate) { | |
| // JavaScript dates can be constructed by passing milliseconds | |
| // since the Unix epoch (January 1, 1970) example: new Date(12312512312); | |
| // 1. Subtract number of days between Jan 1, 1900 and Jan 1, 1970, plus 1 (Google "excel leap year bug") | |
| // 2. Convert to milliseconds. | |
| return new Date((excelDate - (25567 + 1))*86400*1000); | |
| } |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
legend!