Honestly, I built this because I was tired of doing the math in my head and then double-checking it three times.
A couple weeks ago, I needed to figure out my hours for a short freelance gig. I started at 8:47 AM, finished at 5:13 PM, and took a 32-minute lunch somewhere in between. That’s not a round number. I tried doing the mental arithmetic: 8:47 to 5:13 is 8 hours and 26 minutes, minus 32 minutes — wait, is that 7 hours and 54 minutes? Or 7:54? I kept second-guessing myself. I pulled up a spreadsheet, typed in the times, and then had to format the cells correctly so it wouldn't display as a date. It took way longer than it should have for a simple subtraction.
It wasn’t just that one time. Every pay period, I’d find myself scribbling start/stop times on a sticky note and then doing clumsy minute math. It felt dumb. I wanted something that just took the raw times — in a format I actually use — and gave me the answer.
There are plenty of time calculators out there, but most of them either:
I didn't need a system. I just needed to know: “I clocked in at 9:05, out at 5:30, and took 45 minutes for lunch — what's the total?” That's it. One calculation, no sign-up, no distractions.
It’s a single-page calculator. You type in your start time and end time (12-hour or 24-hour, it handles both). Then you enter any unpaid break in minutes — lunch, a long coffee, whatever. Hit calculate and it shows you the total hours worked, broken out into hours and minutes. No decimals, no confusion.
It’s for freelancers tracking a single day, for someone checking their timesheet, or for anybody who just wants to avoid the mental overhead of “okay, 60 minutes in an hour, carry the one…”
Try the Work Hours Calculator →This isn’t going to change your life or optimize your productivity. It’s just a simple tool that does one thing — calculate work hours — and does it without a bunch of extra clicks. If you ever find yourself staring at a clock and doing messy math, maybe it’ll save you a couple minutes and a little frustration. That’s all I wanted.