Advanced time tools
Ten browser-based time utilities — from multiple simultaneous timers to sunrise calculations and moon phases. All run locally on your device.
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Multiple Timers
Run several countdown timers simultaneously — each with its own label, duration, and alarm.
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Multiple Alarms
Set multiple alarms with custom labels. Fires an audio beep when each alarm time is reached.
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Stopwatch with Laps
Stopwatch with full lap and split recording — track splits, best lap, and average pace.
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World Meeting Finder
Find a meeting time that works across multiple time zones — see overlapping business hours at a glance.
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Days Until Event
Count down the exact days, hours, and minutes until any upcoming date or event.
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Public Holidays by Country
Browse public holidays for 30+ countries by year. See the weekday each holiday falls on.
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Business Hours Overlap
See when your business hours overlap with offices in other time zones — plan international calls.
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Sunrise & Sunset Calculator
Calculate sunrise, sunset, solar noon, and day length for any date and geographic location.
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Lunar Calendar & Moon Phase
View the current lunar phase, moon age, next full moon, and a monthly moon phase calendar.
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Week of Year Calendar
Jump to any ISO week number and see its start and end dates — ideal for project planning.
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Why use browser-based time tools?
Every tool here runs entirely in your browser — no server, no account, no upload. From tracking multiple simultaneous tasks with independent timers to calculating the next full moon or finding a meeting slot across Tokyo, London, and New York, these tools give you instant answers on any device.