⏰ 日付・時刻

Shift a date forward or backward by any number of days.

Watch a live countdown to your target date and time.

Interpret a 5-field cron schedule expression.

Turn any date into a human-readable text string.

Convert any number of days into the equivalent number of hours. A simple time conversion tool for planning and calculations.

Count the days between today and any target date.

Convert dates to Discord's embeddable timestamp format.

Quickly convert a number of hours into days and remaining hours. Useful for project planning, scheduling, and understanding long durations.

Check whether any year is a leap year. Enter one or multiple years (comma or space separated) and get instant results. Leap years have 366 days and occur every 4 years, with exceptions for century years.

Convert any number of seconds into a readable time format — days, hours, minutes, and seconds. Useful for video editing, game timing, audio production, and understanding Unix-style durations.

Calculate the exact difference between two dates and times. Get the result in days, hours, minutes, seconds, and approximate months. Useful for age calculation, project timelines, and countdowns.

Convert time in HH:MM:SS format to a decimal hours value. Essential for payroll calculations, invoicing, and timesheet management where hours need to be expressed as a single decimal number.

Convert a time from one timezone to another in your browser.

Convert Unix timestamps (epoch time) to human-readable dates, or convert dates to Unix timestamps. Supports seconds, milliseconds, and microseconds precision. Also shows your current local time as a Unix timestamp. Essential for developers working with APIs, databases, and logging systems that store time as epoch values.

Get the week number of any date in the year.

Check weather for any city with current and 3-day forecast.