AK Singh

Built a free time and date calculator

About

I build small, focused web tools, starting with a calculator for finding the difference between two dates or times, and adding or subtracting days, weeks, months, and years from a date. Trying to get the tricky parts right, leap years, daylight saving changes, instead of glossing over them.

Links

Time and date calculator

Youtube

Badges

Tastemaker

Gone streaking

Maker History

Time and Date CalculatorCalculate date differences, or add and subtract time
Aug 2026

🎉

Joined Product HuntAugust 17th, 2026

Forums

•

22h ago

Time and Date Calculator - Calculate date differences, or add and subtract time

A free calculator with three modes: find the exact difference between two dates or times, or add and subtract days, weeks, months, and years from a date. It correctly handles leap years, months of different lengths, and daylight saving time changes, including local times that don't exist or repeat during a clock change. Optional time zone support on each side. No sign-up, runs entirely in your browser.