Time & Date
Timezone converters, countdowns, and date calculators
Timezone Converter
Convert times between timezones and compare up to four zones side by side.
PopularDate Difference Calculator
Calculate the exact difference between two dates in years, months, days, and business days.
Age Calculator
Calculate your exact age in years, months, and days with birthday countdown and zodiac sign.
Countdown Timer
Live countdown to any target date or duration with presets, alerts, pause/resume, reminders, and persistence.
Stopwatch
Precise stopwatch with lap times, split tracking, and millisecond accuracy.
Pomodoro Timer
Pomodoro technique timer with customisable work and break durations, session tracking, and audio alerts.
Work with timezones, countdowns, calendar math, and date formatting using our free browser-based time and date tools. Convert times between cities, calculate age and date differences, count business days, format timestamps for sharing, and plan meetings across multiple timezones. Every calculation runs locally in your browser, so your schedule data stays private.