Time Zone Converter
Convert times between any time zones instantly.
How it works
- 1
Select dates or times
Enter the date, time, timestamp, or timezone details you want to convert.
- 2
View converted result
See the converted values and exact differences calculated instantly.
- 3
Copy and use
Copy the output for logs, scheduling, reporting, or debugging.
Common use cases
SA to US
14:00 SAST (UTC+2)
UK to Japan
09:00 GMT (UTC+0)
About This Tool
Convert a specific time from one time zone to another with instant, accurate results. The Time Zone Converter supports all major time zones worldwide, including UTC, GMT, EST, CST, MST, PST, SAST, IST, JST, AEST, NZST, and dozens more. It draws on the IANA Time Zone Database — the same authoritative source used by operating systems and programming languages worldwide — to ensure conversions are precise and up to date.
Daylight saving time (DST) transitions are handled automatically. When a region shifts its clocks forward or back for DST, the converter factors this in without you needing to know the exact transition dates. This is critical for scheduling during spring and fall transitions, when a one-hour shift can make or break a meeting time. The tool knows which regions observe DST, which do not, and the exact dates when changes occur.
The interface is designed for speed: select a source time zone, enter the time you want to convert, choose the target time zone, and the converted time appears instantly. You can see results for multiple target zones simultaneously, making it easy to find a meeting time that works for participants in three, four, or five different locations. This side-by-side comparison eliminates the guesswork of coordinating across continents.
Common use cases include scheduling meetings with remote teams spread across multiple time zones, planning international travel itineraries and flight connections, coordinating live events or webinars with a global audience, setting delivery windows for international shipping, and converting broadcast times for sports or media events. Customer support teams use it to communicate accurate availability windows to clients worldwide, while freelancers and consultants rely on it to align their availability with clients in distant countries.
The converter also displays helpful contextual information, including the UTC offset for each selected zone, whether DST is currently in effect, and the current local time in each zone. This additional context helps you make informed scheduling decisions rather than blindly converting numbers.
Understanding time zones is essential in a globally connected world. UTC (Coordinated Universal Time) serves as the universal reference point — all other time zones are expressed as offsets from UTC. While there are 24 standard hourly offsets, the real world includes half-hour offsets (e.g., India at UTC+5:30, Afghanistan at UTC+4:30) and even quarter-hour offsets (e.g., Nepal at UTC+5:45). This converter handles all of them.
All calculations run in your browser. No data is transmitted to any server, no account is required, and the tool is completely free to use with no limitations.
More examples
Examples
SA to US
Input
14:00 SAST (UTC+2)
Output
07:00 EST (UTC-5), 04:00 PST (UTC-8)
UK to Japan
Input
09:00 GMT (UTC+0)
Output
18:00 JST (UTC+9)
Frequently Asked Questions
- Does this handle daylight saving time?
- Yes. The converter uses the IANA time zone database which includes all DST transition rules for each zone. It automatically adjusts conversions during DST transition periods, so you never need to manually account for the one-hour shift.
- What is UTC?
- UTC (Coordinated Universal Time) is the primary time standard by which the world regulates clocks and time. It is not adjusted for daylight saving time. All other time zones are expressed as offsets from UTC — for example, EST is UTC-5 and JST is UTC+9.
- How many time zones are there?
- There are 24 standard time zones, but in practice there are more than 30 due to half-hour and quarter-hour offsets used by some countries. India uses UTC+5:30, Afghanistan uses UTC+4:30, and Nepal uses UTC+5:45.
- Can I convert to multiple time zones at once?
- Yes. You can view the converted time in multiple target time zones simultaneously. This makes it easy to find a meeting time that works for participants in several different locations.
- Is the conversion accurate for past dates?
- The converter is optimized for current and future dates using the latest IANA database. For historical dates, time zone rules may have changed (e.g., countries that have abolished or introduced DST), so very old dates may not reflect the rules in effect at that time.
- What is the difference between GMT and UTC?
- GMT (Greenwich Mean Time) is a time zone based on astronomical observation, while UTC (Coordinated Universal Time) is a precise atomic time standard. For everyday purposes they are equivalent, but UTC is the modern technical standard used in computing and aviation.
- Is my data sent to a server?
- No. All time zone conversions happen entirely in your browser using the built-in Intl.DateTimeFormat API and the IANA database. No data leaves your device.
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