Date & Time Tools
7 free tools for dates, timers, and time zones
Date and time tools take the guesswork out of scheduling and tracking — counting the exact days between two dates, converting a Unix timestamp into a readable date, or running a focused Pomodoro session. Every tool below runs live in your browser using your device's own clock, with nothing sent to a server.
📅 All Date & Time Tools
Pick a tool below — every calculator opens instantly, no sign-up required.
Add/Subtract Days Calculator
Add or subtract a number of days, weeks, or months from any date.
Open Tool →Days Between Dates
Calculate the exact number of days, weeks, or months between two dates.
Open Tool →Leap Year Checker
Check instantly whether any given year is a leap year.
Open Tool →Pomodoro Timer
Stay focused with a customizable Pomodoro work and break timer.
Open Tool →Stopwatch Timer
A simple, accurate stopwatch with lap timing built in.
Open Tool →Unix Timestamp Converter
Convert between Unix timestamps and human-readable dates.
Open Tool →World Clock Converter
Compare the current time across multiple time zones at once.
Open Tool →No tools match your search. Try a different word.
Why Use Browser-Based Date & Time Tools?
Date math is easy to get wrong by hand, especially across leap years or time zones. EverydayTools' date and time utilities handle the calculation instantly, without needing a spreadsheet or a calendar app.
Timers and converters run using your browser's own clock and JavaScript's Date functions, so there's no account needed and no data sent anywhere. That makes them a quick, reliable option whether you're planning a deadline or timing a work session.
Frequently Asked Questions
Yes, every tool in this hub is completely free, with no sign-up and no usage limits.
The Pomodoro Timer and Stopwatch continue running in the background, though browsers may slightly throttle very long inactive tabs.
A Unix timestamp is the number of seconds that have passed since January 1, 1970 (UTC), commonly used by databases and programming languages to store dates.
No. All date math and time zone conversions run locally using your browser's own clock and JavaScript's Date functions.