Date & Time Tools
Date and time utilities: calculators, converters, and formatting tools that run instantly.
Tools in this category: 9
Date & Time Tools
Time Zone Converter
Convert times between time zones and compare them side by side.
Date & Time Tools
Cron Expression Parser
Parse a 5-field cron expression and see when it will next fire, with a plain-English explanation.
Developer Tools
Date Add/Subtract Calculator
Add or subtract days, weeks, months, or years from any date. Handles month-end and leap-year rollovers.
Date & Time Tools
Countdown Timer
Count down to a specific date and time. Set a target, watch the days/hours/minutes/seconds tick down live.
Date & Time Tools
Cron Expression Generator
Build cron expressions from a simple form, or pick a common preset. See plain-English explanations.
Developer Tools
Stopwatch
A clean online stopwatch with laps, millisecond precision, and keyboard shortcuts. Runs in your browser.
Date & Time Tools
Pomodoro Timer
A Pomodoro timer with 25/5/15 defaults. Focus, short break, long break, and session counter. Customizable phase lengths.
Date & Time Tools
Date Formatter
Format any date in ISO, US, EU, long, short, time, Unix, RFC 2822, and ISO week formats. Also converts Unix timestamps.
Date & Time Tools
Sleep Calculator
Find the best bedtime or wake-up time based on 90-minute sleep cycles. Avoid grogginess by waking at the end of a cycle.
Calculators