Time Tools

Compare business hours across 3 cities with color-coded time slots for scheduling international meetings.

Calculate the exact difference between two dates in years, months, days, hours, minutes and seconds.

Convert between Unix timestamps and human-readable dates. Bidirectional with one-click copy.

Customizable focus timer with 25/5/15 minute presets, visual progress ring and audio notifications.

Set an alarm in your browser with audio alerts and push notifications. No app install required.

Calculate timezone differences and get personalized advice on sunlight exposure to beat jet lag.

Live countdown to New Year, next DST change, and any custom event you set.

Estimate flight duration and local arrival time using great-circle distance between cities.

Next full moon date, golden hour and blue hour times for photographers and stargazers.

Test your reflexes with a click-when-green mini game. Track your average reaction time in milliseconds.