About the Time Zone Converter
Convert a specific clock time between two time zones, or look up the current time in any major city. Unit Master uses your browser's built-in time zone database, so daylight-saving transitions are handled automatically — including the asymmetric DST rules that catch many converters out (for example Australia's DST runs October to April, opposite the Northern Hemisphere). Useful for scheduling meetings across countries, calling family overseas, planning travel, or checking when a livestream starts in your local time.
How to use it
- Pick the source time zone and enter the time you want to convert.
- Pick the destination time zone — the converted time updates immediately.
- Swap the source and destination to go the other way.
- The displayed offsets (UTC+1, UTC-5, etc.) update automatically across DST boundaries.
Common time-zone offsets (standard time)
| New York (EST) | UTC−5 |
| Los Angeles (PST) | UTC−8 |
| London (GMT) | UTC+0 |
| Paris / Berlin (CET) | UTC+1 |
| Tokyo (JST) | UTC+9 |
| Sydney (AEST) | UTC+10 |
| Mumbai (IST) | UTC+5:30 |
| Dubai (GST) | UTC+4 |
Frequently asked questions
- Does the converter handle daylight saving time?
- Yes. It uses your browser's IANA time-zone data, which knows the DST rules for every region and the specific historical transitions. A time in 'America/New_York' is automatically EDT in summer and EST in winter.
- Why is India UTC+5:30 instead of a whole hour?
- India adopted a single nationwide standard time in 1906 set to the meridian passing through Mirzapur (82.5° E). That meridian falls halfway between the standard 75° and 90° meridians, giving India a 30-minute offset. Nepal goes even further with UTC+5:45, the only country with a 45-minute offset.
- How accurate is the displayed 'current time'?
- It comes from your device clock. Modern operating systems sync to network time servers automatically, so it's usually accurate to within a few milliseconds. If your device clock is wrong, the displayed time will be wrong too.
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