Time Zone Converter
Convert a time between any two time zones and find a slot that suits both.
- No login
- No signup
- No paywall
- Nothing leaves your browser
Time in New York
11:30 PM
Sat, 20 Sep 2026
- Difference
- 9h 30m behind
- UTC offsets
- +05:30 / -04:00
Results update as you type.
How the conversion works
A time on its own is ambiguous until it is tied to a zone. The converter reads the date and time you enter as a wall-clock time in the source zone, works out the exact moment that corresponds to in UTC, then expresses that same moment as a wall-clock time in the destination zone.
instant = wall clock time + source zone offset on that date
result = instant expressed in destination zone
The offset has to be looked up for the specific date rather than assumed, because most zones shift by an hour for part of the year and they do not all switch on the same day. This is also why the gap between India and the US changes twice a year even though India itself never changes its clocks.
Frequently asked questions
What is the time difference between IST and EST?
India Standard Time is 10 hours 30 minutes ahead of Eastern Standard Time, and 9 hours 30 minutes ahead when the US is on Eastern Daylight Time between March and November. India does not observe daylight saving, so the gap changes twice a year purely because of the US clock change.
Does this account for daylight saving time?
Yes. The converter uses your browser’s built-in time zone database, which knows the daylight-saving rules for each zone and the exact dates they change. Pick a date in a different season and the offset adjusts accordingly.
Why does India use a half-hour offset?
India Standard Time is set to UTC+05:30, based on a meridian near Mirzapur chosen as a single national compromise between the east and west of the country. Several other places use 30 or 45 minute offsets for similar geographic reasons, including Iran, parts of Australia and Nepal.
Can I use this to schedule a meeting across three time zones?
Convert to each zone in turn using the same source time. The converted date is shown alongside the time, which matters because a late-evening meeting in one zone frequently lands on the following calendar day in another.
Is my data sent anywhere?
No. The conversion uses time zone data already built into your browser. Nothing is transmitted, and the tool keeps working offline once the page has loaded.