Time Zone Converter & World Clock
Convert date and time between major world time zones (UTC, EST, PST, CET, JST, AEST).
Czas lokalny w metropoliach świata (Live Local Times)
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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