Time Zone Converter & World Clock
Convert date and time between major world time zones (UTC, EST, PST, CET, JST, AEST).
World Clocks & Local Times(17 locations)
UTC / GMT
(Universal Time)
London / Dublin
(GMT/BST)
Warsaw / Berlin / Paris / Rome
(CET/CEST)
Athens / Kyiv / Helsinki
(EET/EEST)
Dubai / Abu Dhabi
(GST)
New Delhi / Mumbai / Bengaluru
(IST)
Bangkok / Jakarta / Hanoi
(ICT)
Singapore / Hong Kong / Beijing
(SGT/HKT)
Tokyo / Seoul
(JST/KST)
Sydney / Melbourne
(AEST/AEDT)
Auckland / Wellington
(NZST/NZDT)
Honolulu / Hawaii
(HST)
Los Angeles / San Francisco / Vancouver
(PST/PDT)
Denver / Phoenix
(MST/MDT)
Chicago / Mexico City
(CST/CDT)
New York / Toronto / Miami
(EST/EDT)
São Paulo / Buenos Aires
(BRT/ART)
How Does the World Clock & Time Zone Converter Work?
The Earth is divided into 24 standard time zones offset from Coordinated Universal Time (UTC). Our world clock calculator automatically accounts for Daylight Saving Time (DST) changes across major international business hubs including New York (EDT/EST), London (BST/GMT), Tokyo (JST), and Sydney (AEST/AEDT).
International Meeting Scheduling & Remote Work Overlap
Select any future or past date and your local base zone to instantly check local times across teams worldwide to help you schedule friction-free global meetings.
About Calculator
The Time Zone Converter lets you convert dates and times between major world time zones including UTC, EST, PST, CET, JST, AEST, and many more. It accounts for standard offsets from UTC.
Note that daylight saving time (DST) rules vary by country and change periodically. The converter uses fixed UTC offsets, so during DST transitions you may need to adjust by ±1 hour manually.
Frequently Asked Questions (FAQ)
Does the converter handle daylight saving time?
The converter uses fixed UTC offsets. During DST periods (e.g., CET→CEST, EST→EDT), you may need to adjust by 1 hour manually.
What is UTC?
UTC (Coordinated Universal Time) is the primary time standard used worldwide. It does not change with seasons and serves as the base for all time zone calculations.
How many time zones are there?
There are 24 primary time zones, but with half-hour and quarter-hour offsets (e.g., India +5:30, Nepal +5:45), there are over 30 distinct time zones in practice.
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