About Simple Time Tools

Simple Time Tools is a free collection of 25 clocks, timers, and time-math calculators that run entirely in your web browser. There's nothing to install, no account to create, and no files to upload — every calculation, from a stopwatch lap to a sleep-cycle estimate, happens locally on your own device using plain JavaScript.

How it works

Every tool processes everything directly in your browser. Nothing you type into a tool — dates, times, names, numbers — is ever uploaded to, or stored on, any server we operate.

Why it's free

This site is supported by ads (via Google AdSense) rather than subscriptions or paywalls. There's no account to create, no watermark, and every tool is fully usable for free.

Who runs this

Simple Time Tools is built and maintained by Usama Bin Tariq Qureshi.

Feedback

Found a bug, or want a tool we don't have yet? Email ubtqdev@gmail.com.