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Dave's Timecard Calculator

I hate time-math. If I got into work at 10:20 and left at 1:45, how many hours (in decimal) have I worked? That's why I wrote this tool. Now, figuring out my University timecard is so much easier, and less error-prone. Some notes:

  • AM/PM notation is not necessary. Just enter the time as an hour or hour:minute combo. (ie: 4 to 5:36) Avoid 24-hour (military time) notation.

  • To easily navigate the page and make sure the totals work properly, use the Tab key to move between fields. If you change a field, tab over to the hours field for the new totals to be calculated.

  • This script is Javascript and useful. Holy paradox, Batman!

  • Single shifts over 12 hours are not supported. As a university employee, you should not work more than 6 hours straight, or more than 8 hours total per day. Or, at least, you shouldn't report that.

  • The minutes to tenths of hours conversion follows the chart on the back of the white University timecards.

  • Ultimately, you are responsible for the timecards you submit. Make sure the numbers look right before you sign your timecard. Any mistakes, caused by misuse or bugs in the script, are your repsonsibility to catch. (If you do notice a bug in the script, please email me.)

  • I enjoyed writing and using this page. I hope you do, too. Please send me feedback.

    Dave Mussulman
    Last modified: Sun Jun 17 19:38:44 CDT 2001