Time & Date

Plan meetings, convert time zones, and track timers with free tools that live entirely in your browser.

Every tool is free, watermark-free, and runs entirely in your browser—nothing uploads to our servers. If anything needs extra permissions, we call it out right away.

Total tools: 16

Implemented: 16

Online Alarm Clock

New

Set an alarm to ring at a specific time in your browser

Visit Online Alarm Clock

Countdown Timer

Updated

Count down from any time duration with alerts

Visit Countdown Timer

Stopwatch

Beta

Track time with lap/split functionality

Visit Stopwatch

World Clock

View current time in multiple timezones

Visit World Clock

Timezone Converter

Convert times between different timezones

Visit Timezone Converter

Date Difference Calculator

Calculate days, months, and years between dates

Visit Date Difference Calculator

Age Calculator

Calculate your exact age from birthdate

Visit Age Calculator

Add/Subtract Date & Time

Add or subtract days, months, years from a date

Visit Add/Subtract Date & Time

Unix Timestamp Converter

Convert between Unix timestamps and human-readable dates

Visit Unix Timestamp Converter

Meeting Time Planner

Find the best meeting time across timezones

Visit Meeting Time Planner

Sunrise & Sunset Calculator

Track sunrise and sunset times for any date and location

Visit Sunrise & Sunset Calculator

Moon Phase Calendar

Discover the current moon phase and illumination percentage

Visit Moon Phase Calendar

ISO Week Number Finder

Look up the ISO week number for any calendar date

Visit ISO Week Number Finder

Day of Week Calculator

Find the weekday for any date in history or the future

Visit Day of Week Calculator

Decimal Hours Converter

Convert decimal hour values into HH:MM format and back again

Visit Decimal Hours Converter

Pomodoro Timer

Stay productive with a configurable Pomodoro focus timer

Visit Pomodoro Timer