Convert time between any two time zones instantly. Supports all major time zones worldwide.
The world is divided into 24 primary time zones, each roughly 15 degrees of longitude wide. UTC (Coordinated Universal Time) serves as the reference point. Time zones range from UTC-12 (Baker Island) to UTC+14 (Line Islands, Kiribati).
India uses a single time zone (IST = UTC+5:30) across the entire country, despite spanning about 30 degrees of longitude. Some countries, like Nepal (UTC+5:45) and Chatham Islands (UTC+12:45), use 45-minute offsets.
| Time Zone | City | Difference from IST |
|---|---|---|
| EST | New York | -10:30 |
| PST | Los Angeles | -13:30 |
| GMT | London | -5:30 |
| CET | Berlin | -4:30 |
| GST | Dubai | -1:30 |
| JST | Tokyo | +3:30 |
| AEST | Sydney | +4:30 |
India (IST) is UTC+5:30. The difference depends on the US timezone: IST is 10 hours 30 minutes ahead of EST (New York), 13 hours 30 minutes ahead of PST (Los Angeles), and 11 hours 30 minutes ahead of CST (Chicago).
Yes. This tool uses the JavaScript Intl.DateTimeFormat API, which automatically handles daylight saving time transitions for all time zones. The converted time will always be correct regardless of the season.
UTC (Coordinated Universal Time) is the primary time standard by which the world regulates clocks. It is the successor to GMT (Greenwich Mean Time) and serves as the reference point for all time zones. UTC does not observe daylight saving time.
India's 30-minute offset is due to its geographic position. The country spans roughly 77-78 degrees east longitude, which falls between two standard time meridians (75E and 90E). India chose a single time zone for the entire country, resulting in the half-hour offset.
Select IST (India) as the source time zone and EST (New York) as the target. Enter the time you want to convert. IST is 10.5 hours ahead of EST during standard time and 9.5 hours ahead during US daylight saving time (March-November).
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