World clock
The current time in the world's major cities, and a page for every city and country.
Time zone and scheduling tools
Free tools for working across time zones: clocks, converters, planners and reference pages. No sign-up.
Timezone clock
Every time zone on one 24-hour dial, a hand per city. See who is at work, awake or asleep.
Time zone converter
Convert a time between cities and zones for any date, daylight saving included.
Meeting planner
Add everyone's city and see the hours when all of you are at work.
Time zone abbreviations
EST, PST, CET, IST and the rest: full names, current time, offsets, where they are used.
Daylight saving time
Every clock change in the coming year, by date, and the countries that never change.
Week numbers
What week it is today, and every ISO week of the year with its dates.
Date calculator
Days, weeks, months and working days between two dates; a date plus or minus days.
Weather calendar
The forecast in your calendar: an all-day event per day with an emoji and the temperature.
Popular time zone conversions
The pairs people convert most, each with an hour-by-hour table.
- CST to EST
- PST to EST
- EST to CST
- PST to CST
- UTC to EST
- MST to EST
- GMT to EST
- MST to PST
- PST to MST
- UTC to PST
- EST to PST
- EST to IST
- IST to EST
- UTC to CST
- CST to PST
- PDT to EST
- EST to MST
- EDT to EST
- CET to EST
- EST to UTC
- MST to CST
- CDT to EST
- EST to GMT
- CST to MST
- CDT to EDT
- GMT to CST
- PDT to CST
- EDT to CDT
- GMT to PST
- EDT to CST
- PDT to UTC
- BST to EST
- CST to IST
- PST to UTC
- UTC to MST
- CET to PST
- IST to CST
- PST to IST
- PST to GMT
- EDT to PST
- KST to EST
- CST to UTC
- CET to CST
- JST to PST
- IST to PST
- MDT to EST
- MDT to EDT
- CEST to EST
- JST to EST
- UTC to IST
Frequently asked questions
Ask a questionYes, all of them, with no account. They are built by Cal.com, the open scheduling platform, for anyone who works across time zones.
To see what time it is somewhere: the world clock, or the city's own page. To convert a specific time: the converter. To find a slot for several people: the meeting planner, or the timezone clock to eyeball it. To look up an abbreviation or a clock change: the time zone and daylight saving pages. For dates and weeks: the date calculator and week numbers.
Share a Cal.com booking link. Your guests see your availability in their own time zone and pick a slot; the invite lands in both calendars at the right local time.