What time is it?

Click the button to display the elapsed time since January 1, 0001 in various units. As ticks don't account for leap seconds, neither will the calculation. Thus, fields such as Year may seem out of sync with the current Gregorian calendar year.

The text field can be left untouched to calculate the current ticks or it will also accept a date string (e.g. 5/14/1992) and will calculate the number of ticks to that date. If you input numbers for hours, minutes, or seconds, these will be added onto the date input.

Example 1: leave the date input blank and put in 5 hours, 3 minutes, and 21 seconds.
Output 1: the number of ticks to 5 hours, 3 minutes, and 21 seconds in the future.

Example 2: put in "11/11/2004" in the date field and 15 hours, 30 minutes, and leave the seconds blank.
Output 2: the number of ticks November 11th, 2004 at 3:30pm.



When was that?

Epoch time is the number of seconds since midnight on January 1, 1970. Input your epoch time here and the date and time will be output.

Example 1: Input 1444750012
Output 1: GMT of Tue, 13 Oct 2015 15:26:52 GMT


Guid Generator

gwid or goo-id?

  • Click the button to display a new guid
  • Should not be used for the purpose of actually generating guids for production data

Contractor Rate Calculator

Hourly to yearly

  • Assumes a flat state tax rate (just calculate your effect state tax rate and enter that)
  • Not sure all edge cases are handled, but works with reasonable numbers

Weeks of PTO
Weekly Billable Hours
Hourly Wage
Yearly Business Expenses
State Tax Rate

Color Converter

RGB to hex and hex to RGB


Want to add one?

I'm taking suggestions!

Use the form below to shoot me an idea. Include source code if you feel so generous.

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About Developer-Tools

Developer-tools is a living library of little utilities I've found useful over time. Want me to add something? Hit me up on email or Twitter.