Time tools
Find the right tool for your next date, deadline or countdown.
Time Until
Compare local date-times or add a duration. Elapsed hours reflect daylight-saving transitions in the browser’s time zone.
Time Between Two Times
Compare local date-times or add a duration. Elapsed hours reflect daylight-saving transitions in the browser’s time zone.
Hours Between Dates
Compare local date-times or add a duration. Elapsed hours reflect daylight-saving transitions in the browser’s time zone.
Minutes Between Times
Compare local date-times or add a duration. Elapsed hours reflect daylight-saving transitions in the browser’s time zone.
Seconds Between Dates
Compare local date-times or add a duration. Elapsed hours reflect daylight-saving transitions in the browser’s time zone.
Hours Until
Compare local date-times or add a duration. Elapsed hours reflect daylight-saving transitions in the browser’s time zone.
Minutes Until
Compare local date-times or add a duration. Elapsed hours reflect daylight-saving transitions in the browser’s time zone.
Seconds Until
Compare local date-times or add a duration. Elapsed hours reflect daylight-saving transitions in the browser’s time zone.
Time Difference Calculator
Compare local date-times or add a duration. Elapsed hours reflect daylight-saving transitions in the browser’s time zone.
Countdown Timer
Compare local date-times or add a duration. Elapsed hours reflect daylight-saving transitions in the browser’s time zone.
Time From Now
Compare local date-times or add a duration. Elapsed hours reflect daylight-saving transitions in the browser’s time zone.
Time Ago
Compare local date-times or add a duration. Elapsed hours reflect daylight-saving transitions in the browser’s time zone.
World Clock
Compare the current time in cities around the world.
Time Zone Converter
Convert an exact UTC instant to another IANA time zone.
Flip Clock
A large live clock with local time and a full-screen option.
Time Unit Converter
Convert seconds, minutes, hours, days and weeks. Months and years are calendar units rather than fixed durations.
Unix Timestamp Converter
Convert Unix seconds or milliseconds to an exact UTC date-time, or convert a UTC date-time to a timestamp.
Add Time Durations
Add two hours, minutes and seconds durations, carrying extra seconds and minutes correctly.
Subtract Time Durations
Subtract one duration from another and keep the result’s positive or negative direction.
Work Hours & Breaks Calculator
Calculate a dated shift’s elapsed hours and deduct a chosen break duration.
PST to EST Converter
Convert Pacific to Eastern time with a source date, midnight rollover and a choice of fixed standard time or date-aware local zones.
EST to PST Converter
Convert Eastern to Pacific time with a source date, previous-day results and date-aware daylight-saving rules.
Keep exploring
View the tool libraryDays Between Dates
Compare two dates with calendar days, complete weeks and weekday counts. Choose whether to include the end date.
Business Days Calculator
Count working days using your weekend pattern and optional excluded dates. Public holidays are excluded only when entered.
Day of the Week
Inspect a Gregorian date, leap-year rules, ISO week numbers and a printable month calendar.
Time Zone Converter
Convert an exact UTC instant to another IANA time zone.
