Free Time Converter
Convert time across the world, turn a Unix timestamp into a readable date and back, and convert a duration between seconds, minutes, hours and days. A world clock and meeting planner in one, with daylight saving handled for you.
Plan across zones in four steps.
Your own zone and the current time are picked up automatically, so you can start reading straight away. Everything updates live as you change the inputs.
Pick a mode
Time zones for a world clock and meeting planner, Unix time for timestamps, or Duration to convert a length of time.
Set your starting point
Choose a date and time and the zone it is in, or paste a Unix timestamp, or type a duration and its unit.
Add the places you care about
In the planner, add any cities you work with. Each one shows the matching local time, the offset and whether it lands on another day.
Read and copy
Everything updates live as you change the inputs. Copy any result in a tap. Nothing is sent anywhere.
How time actually works.
A few things that trip people up when they convert time, and how this tool keeps them straight.
UTC is the anchor
Coordinated Universal Time is the reference every other zone is measured from. It does not shift for daylight saving, which is why servers, aviation and logs run on it.
Offsets are not fixed
A city that is UTC+1 in winter can be UTC+2 in summer once daylight saving starts. This tool reads the live rules for each zone, so the offset is always the right one for that date.
Unix time counts seconds
A Unix timestamp is the number of seconds since 1 January 1970 UTC. It is how most software stores a moment in time, because it is just one number with no zone attached.
The same instant, many clocks
A call at a single moment reads as a different wall-clock time in every zone. Converting means finding that one shared instant, then showing it on each local clock.
Working across time zones?
Booking a call is one thing. Getting time zones and daylight saving right everywhere in your product, so schedules, reminders, SLAs and reports never land an hour or a day off, is a surprisingly deep problem. That is the kind of software we build at Techliphant, shaped around how your teams and customers actually work.
Common questions.
It does three things. It converts a time from one place to the same instant in cities around the world, so you can plan a call or a deadline across zones. It turns a Unix timestamp into a readable date and back again. And it converts a duration between milliseconds, seconds, minutes, hours, days, weeks, months and years, with a plain-language breakdown.
Open the Time zones mode, set the date and time and the zone it is in, then add the cities you want to see it in. Each city shows the matching local time, its offset from UTC and a note if it falls on the previous or next day. To plan a meeting, set your own time first and read straight down the list.
Yes. It does not store fixed offsets. For every zone it asks your browser for the live rule at the exact date you pick, so a city that switches to summer time shows the right offset for that day, and a conversion in January can differ from the same one in July. Pick the actual date of your meeting to be sure the offset is correct.
A Unix timestamp, also called epoch time, is the number of seconds that have passed since midnight UTC on 1 January 1970. It is how most databases and programs store a moment, because it is a single number with no time zone attached. Some systems use milliseconds instead of seconds, so the tool lets you switch between the two.
Switch to Unix time mode, choose seconds or milliseconds, and paste your number in. It shows the date and time in your local zone and in UTC, the ISO 8601 form, the day of the week and how long ago or ahead that is. Type a date in the other box to get the timestamp back.
Because the world is wide enough that a single instant is already tomorrow in some places and still yesterday in others. When it is 9pm Monday in New York it is already 7:30am Tuesday in Mumbai and 11am Tuesday in Tokyo. The planner marks these with a "+1 day" or "−1 day" tag so a call does not get booked on the wrong date.
The planner covers major cities across the Americas, Europe, Africa, the Middle East, Asia and the Pacific, plus UTC itself. Each is a standard IANA zone, so its rules, including daylight saving, come straight from your browser and stay up to date.
Yes. When the tool opens it reads your device time zone and the current time, so your own clock is already set as the starting point. You can change it to any zone if you are planning from somewhere else.
It is free with no sign-up, and it runs entirely in your browser. No dates, timestamps or zones you enter are sent to a server or stored anywhere, so it is safe for work and personal use alike.
Private by design: this converter runs entirely in your browser. Time-zone rules come from your own device, and nothing you enter, no dates, timestamps or zones, is uploaded to a server or stored anywhere. It keeps working even if your connection drops.
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